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---
license: mit
language:
- multilingual
tags:
- nlp
base_model: OpenGVLab/InternVL2_5-2B
pipeline_tag: text-generation
inference: true
---
# NuExtract-2-2B [experimental version] by NuMind 🔥
NuExtract 2.0 experimental is a family of models trained specifically for structured information extraction tasks. It supports both multimodal inputs and is multilingual.
NB: This is an experimental version that will be superseeded by NuExtract 2.0
We provide several versions of different sizes, all based on the InternVL2.5 family.
| Model Size | Model Name | Base Model | Huggingface Link |
|------------|------------|------------|------------------|
| 2B | NuExtract-2.0-2B | [InternVL2_5-2B](https://huggingface.co/OpenGVLab/InternVL2_5-2B) | [NuExtract-2-2B](https://huggingface.co/numind/NuExtract-2-2B) |
| 4B | NuExtract-2.0-4B | [InternVL2_5-4B](https://huggingface.co/OpenGVLab/InternVL2_5-4B) | [NuExtract-2-4B](https://huggingface.co/numind/NuExtract-2-4B) |
| 8B | NuExtract-2.0-8B | [InternVL2_5-8B](https://huggingface.co/OpenGVLab/InternVL2_5-8B) | [NuExtract-2-8B](https://huggingface.co/numind/NuExtract-2-8B) |
## Overview
To use the model, provide an input text/image and a JSON template describing the information you need to extract. The template should be a JSON object, specifying field names and their expected type.
Support types include:
* `verbatim-string` - instructs the model to extract text that is present verbatim in the input.
* `string` - a generic string field that can incorporate paraphrasing/abstraction.
* `integer` - a whole number.
* `number` - a whole or decimal number.
* `date-time` - ISO formatted date.
* Array of any of the above types (e.g. `["string"]`)
* `enum` - a choice from set of possible answers (represented in template as an array of options, e.g. `["yes", "no", "maybe"]`).
* `multi-label` - an enum that can have multiple possible answers (represented in template as a double-wrapped array, e.g. `[["A", "B", "C"]]`).
If the model does not identify relevant information for a field, it will return `null` or `[]` (for arrays and multi-labels).
The following is an example template:
```json
{
"first_name": "verbatim-string",
"last_name": "verbatim-string",
"description": "string",
"age": "integer",
"gpa": "number",
"birth_date": "date-time",
"nationality": ["France", "England", "Japan", "USA", "China"],
"languages_spoken": [["English", "French", "Japanese", "Mandarin", "Spanish"]]
}
```
An example output:
```json
{
"first_name": "Susan",
"last_name": "Smith",
"description": "A student studying computer science.",
"age": 20,
"gpa": 3.7,
"birth_date": "2005-03-01",
"nationality": "England",
"languages_spoken": ["English", "French"]
}
```
⚠️ We recommend using NuExtract with a temperature at or very close to 0. Some inference frameworks, such as Ollama, use a default of 0.7 which is not well suited to many extraction tasks.
## Inference
Use the following code to handle loading and preprocessing of input data:
```python
import torch
import torchvision.transforms as T
from PIL import Image
from torchvision.transforms.functional import InterpolationMode
IMAGENET_MEAN = (0.485, 0.456, 0.406)
IMAGENET_STD = (0.229, 0.224, 0.225)
def build_transform(input_size):
MEAN, STD = IMAGENET_MEAN, IMAGENET_STD
transform = T.Compose([
T.Lambda(lambda img: img.convert('RGB') if img.mode != 'RGB' else img),
T.Resize((input_size, input_size), interpolation=InterpolationMode.BICUBIC),
T.ToTensor(),
T.Normalize(mean=MEAN, std=STD)
])
return transform
def find_closest_aspect_ratio(aspect_ratio, target_ratios, width, height, image_size):
best_ratio_diff = float('inf')
best_ratio = (1, 1)
area = width * height
for ratio in target_ratios:
target_aspect_ratio = ratio[0] / ratio[1]
ratio_diff = abs(aspect_ratio - target_aspect_ratio)
if ratio_diff < best_ratio_diff:
best_ratio_diff = ratio_diff
best_ratio = ratio
elif ratio_diff == best_ratio_diff:
if area > 0.5 * image_size * image_size * ratio[0] * ratio[1]:
best_ratio = ratio
return best_ratio
def dynamic_preprocess(image, min_num=1, max_num=12, image_size=448, use_thumbnail=False):
orig_width, orig_height = image.size
aspect_ratio = orig_width / orig_height
# calculate the existing image aspect ratio
target_ratios = set(
(i, j) for n in range(min_num, max_num + 1) for i in range(1, n + 1) for j in range(1, n + 1) if
i * j <= max_num and i * j >= min_num)
target_ratios = sorted(target_ratios, key=lambda x: x[0] * x[1])
# find the closest aspect ratio to the target
target_aspect_ratio = find_closest_aspect_ratio(
aspect_ratio, target_ratios, orig_width, orig_height, image_size)
# calculate the target width and height
target_width = image_size * target_aspect_ratio[0]
target_height = image_size * target_aspect_ratio[1]
blocks = target_aspect_ratio[0] * target_aspect_ratio[1]
# resize the image
resized_img = image.resize((target_width, target_height))
processed_images = []
for i in range(blocks):
box = (
(i % (target_width // image_size)) * image_size,
(i // (target_width // image_size)) * image_size,
((i % (target_width // image_size)) + 1) * image_size,
((i // (target_width // image_size)) + 1) * image_size
)
# split the image
split_img = resized_img.crop(box)
processed_images.append(split_img)
assert len(processed_images) == blocks
if use_thumbnail and len(processed_images) != 1:
thumbnail_img = image.resize((image_size, image_size))
processed_images.append(thumbnail_img)
return processed_images
def load_image(image_file, input_size=448, max_num=12):
image = Image.open(image_file).convert('RGB')
transform = build_transform(input_size=input_size)
images = dynamic_preprocess(image, image_size=input_size, use_thumbnail=True, max_num=max_num)
pixel_values = [transform(image) for image in images]
pixel_values = torch.stack(pixel_values)
return pixel_values
def prepare_inputs(messages, image_paths, tokenizer, device='cuda', dtype=torch.bfloat16):
"""
Prepares multi-modal input components (supports multiple images per prompt).
Args:
messages: List of input messages/prompts (strings or dicts with 'role' and 'content')
image_paths: List where each element is either None (for text-only) or a list of image paths
tokenizer: The tokenizer to use for applying chat templates
device: Device to place tensors on ('cuda', 'cpu', etc.)
dtype: Data type for image tensors (default: torch.bfloat16)
Returns:
dict: Contains 'prompts', 'pixel_values_list', and 'num_patches_list' ready for the model
"""
# Make sure image_paths list is at least as long as messages
if len(image_paths) < len(messages):
# Pad with None for text-only messages
image_paths = image_paths + [None] * (len(messages) - len(image_paths))
# Process images and collect patch information
loaded_images = []
num_patches_list = []
for paths in image_paths:
if paths and isinstance(paths, list) and len(paths) > 0:
# Load each image in this prompt
prompt_images = []
prompt_patches = []
for path in paths:
# Load the image
img = load_image(path).to(dtype=dtype, device=device)
# Ensure img has correct shape [patches, C, H, W]
if len(img.shape) == 3: # [C, H, W] -> [1, C, H, W]
img = img.unsqueeze(0)
prompt_images.append(img)
# Record the number of patches for this image
prompt_patches.append(img.shape[0])
loaded_images.append(prompt_images)
num_patches_list.append(prompt_patches)
else:
# Text-only prompt
loaded_images.append(None)
num_patches_list.append([])
# Create the concatenated pixel_values_list
pixel_values_list = []
for prompt_images in loaded_images:
if prompt_images:
# Concatenate all images for this prompt
pixel_values_list.append(torch.cat(prompt_images, dim=0))
else:
# Text-only prompt
pixel_values_list.append(None)
# Format messages for the model
if all(isinstance(m, str) for m in messages):
# Simple string messages: convert to chat format
batch_messages = [
[{"role": "user", "content": message}]
for message in messages
]
else:
# Assume messages are already in the right format
batch_messages = messages
# Apply chat template
prompts = tokenizer.apply_chat_template(
batch_messages,
tokenize=False,
add_generation_prompt=True
)
return {
'prompts': prompts,
'pixel_values_list': pixel_values_list,
'num_patches_list': num_patches_list
}
def construct_message(text, template, examples=None):
"""
Construct the individual NuExtract message texts, prior to chat template formatting.
"""
# add few-shot examples if needed
if examples is not None and len(examples) > 0:
icl = "# Examples:\n"
for row in examples:
icl += f"## Input:\n{row['input']}\n## Output:\n{row['output']}\n"
else:
icl = ""
return f"""# Template:\n{template}\n{icl}# Context:\n{text}"""
```
To handle inference:
```python
IMG_START_TOKEN='<img>'
IMG_END_TOKEN='</img>'
IMG_CONTEXT_TOKEN='<IMG_CONTEXT>'
def nuextract_generate(model, tokenizer, prompts, generation_config, pixel_values_list=None, num_patches_list=None):
"""
Generate responses for a batch of NuExtract inputs.
Support for multiple and varying numbers of images per prompt.
Args:
model: The vision-language model
tokenizer: The tokenizer for the model
pixel_values_list: List of tensor batches, one per prompt
Each batch has shape [num_images, channels, height, width] or None for text-only prompts
prompts: List of text prompts
generation_config: Configuration for text generation
num_patches_list: List of lists, each containing patch counts for images in a prompt
Returns:
List of generated responses
"""
img_context_token_id = tokenizer.convert_tokens_to_ids(IMG_CONTEXT_TOKEN)
model.img_context_token_id = img_context_token_id
# Replace all image placeholders with appropriate tokens
modified_prompts = []
total_image_files = 0
total_patches = 0
image_containing_prompts = []
for idx, prompt in enumerate(prompts):
# check if this prompt has images
has_images = (pixel_values_list and
idx < len(pixel_values_list) and
pixel_values_list[idx] is not None and
isinstance(pixel_values_list[idx], torch.Tensor) and
pixel_values_list[idx].shape[0] > 0)
if has_images:
# prompt with image placeholders
image_containing_prompts.append(idx)
modified_prompt = prompt
patches = num_patches_list[idx] if (num_patches_list and idx < len(num_patches_list)) else []
num_images = len(patches)
total_image_files += num_images
total_patches += sum(patches)
# replace each <image> placeholder with image tokens
for i, num_patches in enumerate(patches):
image_tokens = IMG_START_TOKEN + IMG_CONTEXT_TOKEN * model.num_image_token * num_patches + IMG_END_TOKEN
modified_prompt = modified_prompt.replace('<image>', image_tokens, 1)
else:
# text-only prompt
modified_prompt = prompt
modified_prompts.append(modified_prompt)
# process all prompts in a single batch
tokenizer.padding_side = 'left'
model_inputs = tokenizer(modified_prompts, return_tensors='pt', padding=True)
input_ids = model_inputs['input_ids'].to(model.device)
attention_mask = model_inputs['attention_mask'].to(model.device)
eos_token_id = tokenizer.convert_tokens_to_ids("<|im_end|>\n".strip())
generation_config['eos_token_id'] = eos_token_id
# prepare pixel values
flattened_pixel_values = None
if image_containing_prompts:
# collect and concatenate all image tensors
all_pixel_values = []
for idx in image_containing_prompts:
all_pixel_values.append(pixel_values_list[idx])
flattened_pixel_values = torch.cat(all_pixel_values, dim=0)
print(f"Processing batch with {len(prompts)} prompts, {total_image_files} actual images, and {total_patches} total patches")
else:
print(f"Processing text-only batch with {len(prompts)} prompts")
# generate outputs
outputs = model.generate(
pixel_values=flattened_pixel_values, # will be None for text-only prompts
input_ids=input_ids,
attention_mask=attention_mask,
**generation_config
)
# Decode responses
responses = tokenizer.batch_decode(outputs, skip_special_tokens=True)
return responses
```
To load the model:
```python
import torch
from transformers import AutoModelForCausalLM, AutoTokenizer
model_name = ""
tokenizer = AutoTokenizer.from_pretrained(model_name, trust_remote_code=True, padding_side='left')
model = AutoModelForCausalLM.from_pretrained(model_name, trust_remote_code=True,
torch_dtype=torch.bfloat16,
attn_implementation="flash_attention_2" # we recommend using flash attention
).to("cuda")
```
Simple 0-shot text-only example:
```python
template = """{"names": ["verbatim-string"]}"""
text = "John went to the restaurant with Mary. James went to the cinema."
input_messages = [construct_message(text, template)]
input_content = prepare_inputs(
messages=input_messages,
image_paths=[],
tokenizer=tokenizer,
)
generation_config = {"do_sample": False, "num_beams": 1, "max_new_tokens": 2048}
with torch.no_grad():
result = nuextract_generate(
model=model,
tokenizer=tokenizer,
prompts=input_content['prompts'],
pixel_values_list=input_content['pixel_values_list'],
num_patches_list=input_content['num_patches_list'],
generation_config=generation_config
)
for y in result:
print(y)
# {"names": ["John", "Mary", "James"]}
```
Text-only input with an in-context example:
```python
template = """{"names": ["verbatim-string"], "female_names": ["verbatim-string"]}"""
text = "John went to the restaurant with Mary. James went to the cinema."
examples = [
{
"input": "Stephen is the manager at Susan's store.",
"output": """{"names": ["STEPHEN", "SUSAN"], "female_names": ["SUSAN"]}"""
}
]
input_messages = [construct_message(text, template, examples)]
input_content = prepare_inputs(
messages=input_messages,
image_paths=[],
tokenizer=tokenizer,
)
generation_config = {"do_sample": False, "num_beams": 1, "max_new_tokens": 2048}
with torch.no_grad():
result = nuextract_generate(
model=model,
tokenizer=tokenizer,
prompts=input_content['prompts'],
pixel_values_list=input_content['pixel_values_list'],
num_patches_list=input_content['num_patches_list'],
generation_config=generation_config
)
for y in result:
print(y)
# {"names": ["JOHN", "MARY", "JAMES"], "female_names": ["MARY"]}
```
Example with image input and an in-context example. Image inputs should use `<image>` placeholder instead of text and image paths should be provided in a list in order of appearance in the prompt (in this example `0.jpg` will be for the in-context example and `1.jpg` for the true input).
```python
template = """{"store": "verbatim-string"}"""
text = "<image>"
examples = [
{
"input": "<image>",
"output": """{"store": "Walmart"}"""
}
]
input_messages = [construct_message(text, template, examples)]
images = [
["0.jpg", "1.jpg"]
]
input_content = prepare_inputs(
messages=input_messages,
image_paths=images,
tokenizer=tokenizer,
)
generation_config = {"do_sample": False, "num_beams": 1, "max_new_tokens": 2048}
with torch.no_grad():
result = nuextract_generate(
model=model,
tokenizer=tokenizer,
prompts=input_content['prompts'],
pixel_values_list=input_content['pixel_values_list'],
num_patches_list=input_content['num_patches_list'],
generation_config=generation_config
)
for y in result:
print(y)
# {"store": "Trader Joe's"}
```
Multi-modal batched input:
```python
inputs = [
# image input with no ICL examples
{
"text": "<image>",
"template": """{"store_name": "verbatim-string"}""",
"examples": None,
},
# image input with 1 ICL example
{
"text": "<image>",
"template": """{"store_name": "verbatim-string"}""",
"examples": [
{
"input": "<image>",
"output": """{"store_name": "Walmart"}""",
}
],
},
# text input with no ICL examples
{
"text": "John went to the restaurant with Mary. James went to the cinema.",
"template": """{"names": ["verbatim-string"]}""",
"examples": None,
},
# text input with ICL example
{
"text": "John went to the restaurant with Mary. James went to the cinema.",
"template": """{"names": ["verbatim-string"], "female_names": ["verbatim-string"]}""",
"examples": [
{
"input": "Stephen is the manager at Susan's store.",
"output": """{"names": ["STEPHEN", "SUSAN"], "female_names": ["SUSAN"]}"""
}
],
},
]
input_messages = [
construct_message(
x["text"],
x["template"],
x["examples"]
) for x in inputs
]
images = [
["0.jpg"],
["0.jpg", "1.jpg"],
None,
None
]
input_content = prepare_inputs(
messages=input_messages,
image_paths=images,
tokenizer=tokenizer,
)
generation_config = {"do_sample": False, "num_beams": 1, "max_new_tokens": 2048}
with torch.no_grad():
result = nuextract_generate(
model=model,
tokenizer=tokenizer,
prompts=input_content['prompts'],
pixel_values_list=input_content['pixel_values_list'],
num_patches_list=input_content['num_patches_list'],
generation_config=generation_config
)
for y in result:
print(y)
# {"store_name": "WAL*MART"}
# {"store_name": "Trader Joe's"}
# {"names": ["John", "Mary", "James"]}
# {"names": ["JOHN", "MARY", "JAMES"], "female_names": ["MARY"]}
```
## Template Generation
If you want to convert existing schema files you have in other formats (e.g. XML, YAML, etc.) or start from an example, NuExtract 2 models can automatically generate this for you.
E.g. convert XML into a NuExtract template:
```python
def generate_template(description):
input_messages = [description]
input_content = prepare_inputs(
messages=input_messages,
image_paths=[],
tokenizer=tokenizer,
)
generation_config = {"do_sample": True, "temperature": 0.4, "max_new_tokens": 256}
with torch.no_grad():
result = nuextract_generate(
model=model,
tokenizer=tokenizer,
prompts=input_content['prompts'],
pixel_values_list=input_content['pixel_values_list'],
num_patches_list=input_content['num_patches_list'],
generation_config=generation_config
)
return result[0]
xml_template = """<SportResult>
<Date></Date>
<Sport></Sport>
<Venue></Venue>
<HomeTeam></HomeTeam>
<AwayTeam></AwayTeam>
<HomeScore></HomeScore>
<AwayScore></AwayScore>
<TopScorer></TopScorer>
</SportResult>"""
result = generate_template(xml_template)
print(result)
# {
# "SportResult": {
# "Date": "date-time",
# "Sport": "verbatim-string",
# "Venue": "verbatim-string",
# "HomeTeam": "verbatim-string",
# "AwayTeam": "verbatim-string",
# "HomeScore": "integer",
# "AwayScore": "integer",
# "TopScorer": "verbatim-string"
# }
# }
```
E.g. generate a template from natural language description:
```python
text = """Give me relevant info about startup companies mentioned."""
result = generate_template(text)
print(result)
# {
# "Startup_Companies": [
# {
# "Name": "verbatim-string",
# "Products": [
# "string"
# ],
# "Location": "verbatim-string",
# "Company_Type": [
# "Technology",
# "Finance",
# "Health",
# "Education",
# "Other"
# ]
# }
# ]
# }
```

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{
"</box>": 92552,
"</img>": 92545,
"</quad>": 92548,
"</ref>": 92550,
"<IMG_CONTEXT>": 92546,
"<box>": 92551,
"<img>": 92544,
"<quad>": 92547,
"<ref>": 92549
}

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{
"_commit_hash": null,
"_name_or_path": "experiments/intervl2B_filter/checkpoint-6504",
"architectures": [
"InternVLChatModel"
],
"auto_map": {
"AutoConfig": "configuration_internvl_chat.InternVLChatConfig",
"AutoModel": "numind/NuExtract-2-2B--modeling_internvl_chat.InternVLChatModel",
"AutoModelForCausalLM": "numind/NuExtract-2-2B--modeling_internvl_chat.InternVLChatModel"
},
"downsample_ratio": 0.5,
"dynamic_image_size": true,
"force_image_size": 448,
"llm_config": {
"_attn_implementation_autoset": true,
"_name_or_path": "internlm/internlm2_5-1_8b-chat",
"add_cross_attention": false,
"architectures": [
"InternLM2ForCausalLM"
],
"attn_implementation": "flash_attention_2",
"auto_map": {
"AutoConfig": "configuration_internlm2.InternLM2Config",
"AutoModel": "modeling_internlm2.InternLM2ForCausalLM",
"AutoModelForCausalLM": "modeling_internlm2.InternLM2ForCausalLM",
"AutoModelForSequenceClassification": "modeling_internlm2.InternLM2ForSequenceClassification"
},
"bad_words_ids": null,
"begin_suppress_tokens": null,
"bias": false,
"bos_token_id": 1,
"chunk_size_feed_forward": 0,
"cross_attention_hidden_size": null,
"decoder_start_token_id": null,
"diversity_penalty": 0.0,
"do_sample": false,
"early_stopping": false,
"encoder_no_repeat_ngram_size": 0,
"eos_token_id": 2,
"exponential_decay_length_penalty": null,
"finetuning_task": null,
"forced_bos_token_id": null,
"forced_eos_token_id": null,
"hidden_act": "silu",
"hidden_size": 2048,
"id2label": {
"0": "LABEL_0",
"1": "LABEL_1"
},
"initializer_range": 0.02,
"intermediate_size": 8192,
"is_decoder": false,
"is_encoder_decoder": false,
"label2id": {
"LABEL_0": 0,
"LABEL_1": 1
},
"length_penalty": 1.0,
"max_length": 20,
"max_position_embeddings": 32768,
"min_length": 0,
"model_type": "internlm2",
"no_repeat_ngram_size": 0,
"num_attention_heads": 16,
"num_beam_groups": 1,
"num_beams": 1,
"num_hidden_layers": 24,
"num_key_value_heads": 8,
"num_return_sequences": 1,
"output_attentions": false,
"output_hidden_states": false,
"output_scores": false,
"pad_token_id": 2,
"prefix": null,
"pretraining_tp": 1,
"problem_type": null,
"pruned_heads": {},
"remove_invalid_values": false,
"repetition_penalty": 1.0,
"return_dict": true,
"return_dict_in_generate": false,
"rms_norm_eps": 1e-05,
"rope_scaling": {
"factor": 2.0,
"type": "dynamic"
},
"rope_theta": 1000000,
"sep_token_id": null,
"suppress_tokens": null,
"task_specific_params": null,
"temperature": 1.0,
"tf_legacy_loss": false,
"tie_encoder_decoder": false,
"tie_word_embeddings": false,
"tokenizer_class": null,
"top_k": 50,
"top_p": 1.0,
"torch_dtype": "bfloat16",
"torchscript": false,
"transformers_version": "4.49.0.dev0",
"typical_p": 1.0,
"use_bfloat16": true,
"use_cache": true,
"vocab_size": 92553
},
"max_dynamic_patch": 12,
"min_dynamic_patch": 1,
"model_type": "internvl_chat",
"ps_version": "v2",
"select_layer": -1,
"template": "internvl2_5",
"torch_dtype": "bfloat16",
"transformers_version": null,
"use_backbone_lora": 0,
"use_llm_lora": 0,
"use_thumbnail": true,
"vision_config": {
"_attn_implementation_autoset": true,
"_name_or_path": "",
"add_cross_attention": false,
"architectures": [
"InternVisionModel"
],
"attention_dropout": 0.0,
"bad_words_ids": null,
"begin_suppress_tokens": null,
"bos_token_id": null,
"chunk_size_feed_forward": 0,
"cross_attention_hidden_size": null,
"decoder_start_token_id": null,
"diversity_penalty": 0.0,
"do_sample": false,
"drop_path_rate": 0.0,
"dropout": 0.0,
"early_stopping": false,
"encoder_no_repeat_ngram_size": 0,
"eos_token_id": null,
"exponential_decay_length_penalty": null,
"finetuning_task": null,
"forced_bos_token_id": null,
"forced_eos_token_id": null,
"hidden_act": "gelu",
"hidden_size": 1024,
"id2label": {
"0": "LABEL_0",
"1": "LABEL_1"
},
"image_size": 448,
"initializer_factor": 1.0,
"initializer_range": 0.02,
"intermediate_size": 4096,
"is_decoder": false,
"is_encoder_decoder": false,
"label2id": {
"LABEL_0": 0,
"LABEL_1": 1
},
"layer_norm_eps": 1e-06,
"length_penalty": 1.0,
"max_length": 20,
"min_length": 0,
"model_type": "intern_vit_6b",
"no_repeat_ngram_size": 0,
"norm_type": "layer_norm",
"num_attention_heads": 16,
"num_beam_groups": 1,
"num_beams": 1,
"num_channels": 3,
"num_hidden_layers": 24,
"num_return_sequences": 1,
"output_attentions": false,
"output_hidden_states": false,
"output_scores": false,
"pad_token_id": null,
"patch_size": 14,
"prefix": null,
"problem_type": null,
"pruned_heads": {},
"qk_normalization": false,
"qkv_bias": true,
"remove_invalid_values": false,
"repetition_penalty": 1.0,
"return_dict": true,
"return_dict_in_generate": false,
"sep_token_id": null,
"suppress_tokens": null,
"task_specific_params": null,
"temperature": 1.0,
"tf_legacy_loss": false,
"tie_encoder_decoder": false,
"tie_word_embeddings": true,
"tokenizer_class": null,
"top_k": 50,
"top_p": 1.0,
"torch_dtype": "bfloat16",
"torchscript": false,
"transformers_version": "4.49.0.dev0",
"typical_p": 1.0,
"use_bfloat16": true,
"use_flash_attn": true
}
}

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configuration.json Normal file
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{"framework": "pytorch", "task": "text-generation", "allow_remote": true}

120
configuration_intern_vit.py Normal file
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# --------------------------------------------------------
# InternVL
# Copyright (c) 2024 OpenGVLab
# Licensed under The MIT License [see LICENSE for details]
# --------------------------------------------------------
import os
from typing import Union
from transformers.configuration_utils import PretrainedConfig
from transformers.utils import logging
logger = logging.get_logger(__name__)
class InternVisionConfig(PretrainedConfig):
r"""
This is the configuration class to store the configuration of a [`InternVisionModel`]. It is used to
instantiate a vision encoder according to the specified arguments, defining the model architecture.
Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
documentation from [`PretrainedConfig`] for more information.
Args:
num_channels (`int`, *optional*, defaults to 3):
Number of color channels in the input images (e.g., 3 for RGB).
patch_size (`int`, *optional*, defaults to 14):
The size (resolution) of each patch.
image_size (`int`, *optional*, defaults to 224):
The size (resolution) of each image.
qkv_bias (`bool`, *optional*, defaults to `False`):
Whether to add a bias to the queries and values in the self-attention layers.
hidden_size (`int`, *optional*, defaults to 3200):
Dimensionality of the encoder layers and the pooler layer.
num_attention_heads (`int`, *optional*, defaults to 25):
Number of attention heads for each attention layer in the Transformer encoder.
intermediate_size (`int`, *optional*, defaults to 12800):
Dimensionality of the "intermediate" (i.e., feed-forward) layer in the Transformer encoder.
qk_normalization (`bool`, *optional*, defaults to `True`):
Whether to normalize the queries and keys in the self-attention layers.
num_hidden_layers (`int`, *optional*, defaults to 48):
Number of hidden layers in the Transformer encoder.
use_flash_attn (`bool`, *optional*, defaults to `True`):
Whether to use flash attention mechanism.
hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`):
The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`,
`"relu"`, `"selu"` and `"gelu_new"` ``"gelu"` are supported.
layer_norm_eps (`float`, *optional*, defaults to 1e-6):
The epsilon used by the layer normalization layers.
dropout (`float`, *optional*, defaults to 0.0):
The dropout probability for all fully connected layers in the embeddings, encoder, and pooler.
drop_path_rate (`float`, *optional*, defaults to 0.0):
Dropout rate for stochastic depth.
attention_dropout (`float`, *optional*, defaults to 0.0):
The dropout ratio for the attention probabilities.
initializer_range (`float`, *optional*, defaults to 0.02):
The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
initializer_factor (`float`, *optional*, defaults to 0.1):
A factor for layer scale.
"""
model_type = 'intern_vit_6b'
def __init__(
self,
num_channels=3,
patch_size=14,
image_size=224,
qkv_bias=False,
hidden_size=3200,
num_attention_heads=25,
intermediate_size=12800,
qk_normalization=True,
num_hidden_layers=48,
use_flash_attn=True,
hidden_act='gelu',
norm_type='rms_norm',
layer_norm_eps=1e-6,
dropout=0.0,
drop_path_rate=0.0,
attention_dropout=0.0,
initializer_range=0.02,
initializer_factor=0.1,
**kwargs,
):
super().__init__(**kwargs)
self.hidden_size = hidden_size
self.intermediate_size = intermediate_size
self.dropout = dropout
self.drop_path_rate = drop_path_rate
self.num_hidden_layers = num_hidden_layers
self.num_attention_heads = num_attention_heads
self.num_channels = num_channels
self.patch_size = patch_size
self.image_size = image_size
self.initializer_range = initializer_range
self.initializer_factor = initializer_factor
self.attention_dropout = attention_dropout
self.layer_norm_eps = layer_norm_eps
self.hidden_act = hidden_act
self.norm_type = norm_type
self.qkv_bias = qkv_bias
self.qk_normalization = qk_normalization
self.use_flash_attn = use_flash_attn
@classmethod
def from_pretrained(cls, pretrained_model_name_or_path: Union[str, os.PathLike], **kwargs) -> 'PretrainedConfig':
config_dict, kwargs = cls.get_config_dict(pretrained_model_name_or_path, **kwargs)
if 'vision_config' in config_dict:
config_dict = config_dict['vision_config']
if 'model_type' in config_dict and hasattr(cls, 'model_type') and config_dict['model_type'] != cls.model_type:
logger.warning(
f"You are using a model of type {config_dict['model_type']} to instantiate a model of type "
f'{cls.model_type}. This is not supported for all configurations of models and can yield errors.'
)
return cls.from_dict(config_dict, **kwargs)

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configuration_internlm2.py Normal file
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# Copyright (c) The InternLM team and The HuggingFace Inc. team. All rights reserved.
#
# This code is based on transformers/src/transformers/models/llama/configuration_llama.py
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
""" InternLM2 model configuration"""
from transformers.configuration_utils import PretrainedConfig
from transformers.utils import logging
logger = logging.get_logger(__name__)
INTERNLM2_PRETRAINED_CONFIG_ARCHIVE_MAP = {}
# Modified from transformers.model.llama.configuration_llama.LlamaConfig
class InternLM2Config(PretrainedConfig):
r"""
This is the configuration class to store the configuration of a [`InternLM2Model`]. It is used to instantiate
an InternLM2 model according to the specified arguments, defining the model architecture. Instantiating a
configuration with the defaults will yield a similar configuration to that of the InternLM2-7B.
Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
documentation from [`PretrainedConfig`] for more information.
Args:
vocab_size (`int`, *optional*, defaults to 32000):
Vocabulary size of the InternLM2 model. Defines the number of different tokens that can be represented by the
`inputs_ids` passed when calling [`InternLM2Model`]
hidden_size (`int`, *optional*, defaults to 4096):
Dimension of the hidden representations.
intermediate_size (`int`, *optional*, defaults to 11008):
Dimension of the MLP representations.
num_hidden_layers (`int`, *optional*, defaults to 32):
Number of hidden layers in the Transformer encoder.
num_attention_heads (`int`, *optional*, defaults to 32):
Number of attention heads for each attention layer in the Transformer encoder.
num_key_value_heads (`int`, *optional*):
This is the number of key_value heads that should be used to implement Grouped Query Attention. If
`num_key_value_heads=num_attention_heads`, the model will use Multi Head Attention (MHA), if
`num_key_value_heads=1 the model will use Multi Query Attention (MQA) otherwise GQA is used. When
converting a multi-head checkpoint to a GQA checkpoint, each group key and value head should be constructed
by meanpooling all the original heads within that group. For more details checkout [this
paper](https://arxiv.org/pdf/2305.13245.pdf). If it is not specified, will default to
`num_attention_heads`.
hidden_act (`str` or `function`, *optional*, defaults to `"silu"`):
The non-linear activation function (function or string) in the decoder.
max_position_embeddings (`int`, *optional*, defaults to 2048):
The maximum sequence length that this model might ever be used with. Typically set this to something large
just in case (e.g., 512 or 1024 or 2048).
initializer_range (`float`, *optional*, defaults to 0.02):
The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
rms_norm_eps (`float`, *optional*, defaults to 1e-12):
The epsilon used by the rms normalization layers.
use_cache (`bool`, *optional*, defaults to `True`):
Whether or not the model should return the last key/values attentions (not used by all models). Only
relevant if `config.is_decoder=True`.
tie_word_embeddings(`bool`, *optional*, defaults to `False`):
Whether to tie weight embeddings
Example:
"""
model_type = 'internlm2'
_auto_class = 'AutoConfig'
def __init__( # pylint: disable=W0102
self,
vocab_size=103168,
hidden_size=4096,
intermediate_size=11008,
num_hidden_layers=32,
num_attention_heads=32,
num_key_value_heads=None,
hidden_act='silu',
max_position_embeddings=2048,
initializer_range=0.02,
rms_norm_eps=1e-6,
use_cache=True,
pad_token_id=0,
bos_token_id=1,
eos_token_id=2,
tie_word_embeddings=False,
bias=True,
rope_theta=10000,
rope_scaling=None,
attn_implementation='eager',
**kwargs,
):
self.vocab_size = vocab_size
self.max_position_embeddings = max_position_embeddings
self.hidden_size = hidden_size
self.intermediate_size = intermediate_size
self.num_hidden_layers = num_hidden_layers
self.num_attention_heads = num_attention_heads
self.bias = bias
if num_key_value_heads is None:
num_key_value_heads = num_attention_heads
self.num_key_value_heads = num_key_value_heads
self.hidden_act = hidden_act
self.initializer_range = initializer_range
self.rms_norm_eps = rms_norm_eps
self.use_cache = use_cache
self.rope_theta = rope_theta
self.rope_scaling = rope_scaling
self._rope_scaling_validation()
self.attn_implementation = attn_implementation
if self.attn_implementation is None:
self.attn_implementation = 'eager'
super().__init__(
pad_token_id=pad_token_id,
bos_token_id=bos_token_id,
eos_token_id=eos_token_id,
tie_word_embeddings=tie_word_embeddings,
**kwargs,
)
def _rope_scaling_validation(self):
"""
Validate the `rope_scaling` configuration.
"""
if self.rope_scaling is None:
return
if not isinstance(self.rope_scaling, dict) or len(self.rope_scaling) != 2:
raise ValueError(
'`rope_scaling` must be a dictionary with with two fields, `type` and `factor`, '
f'got {self.rope_scaling}'
)
rope_scaling_type = self.rope_scaling.get('type', None)
rope_scaling_factor = self.rope_scaling.get('factor', None)
if rope_scaling_type is None or rope_scaling_type not in ['linear', 'dynamic']:
raise ValueError(
f"`rope_scaling`'s type field must be one of ['linear', 'dynamic'], got {rope_scaling_type}"
)
if rope_scaling_factor is None or not isinstance(rope_scaling_factor, float) or rope_scaling_factor < 1.0:
raise ValueError(f"`rope_scaling`'s factor field must be a float >= 1, got {rope_scaling_factor}")

96
configuration_internvl_chat.py Normal file
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# --------------------------------------------------------
# InternVL
# Copyright (c) 2024 OpenGVLab
# Licensed under The MIT License [see LICENSE for details]
# --------------------------------------------------------
import copy
from transformers import AutoConfig, LlamaConfig
from transformers.configuration_utils import PretrainedConfig
from transformers.utils import logging
from .configuration_intern_vit import InternVisionConfig
from .configuration_internlm2 import InternLM2Config
logger = logging.get_logger(__name__)
class InternVLChatConfig(PretrainedConfig):
model_type = 'internvl_chat'
is_composition = True
def __init__(
self,
vision_config=None,
llm_config=None,
use_backbone_lora=0,
use_llm_lora=0,
select_layer=-1,
force_image_size=None,
downsample_ratio=0.5,
template=None,
dynamic_image_size=False,
use_thumbnail=False,
ps_version='v1',
min_dynamic_patch=1,
max_dynamic_patch=6,
**kwargs):
super().__init__(**kwargs)
if vision_config is None:
vision_config = {'architectures': ['InternVisionModel']}
logger.info('vision_config is None. Initializing the InternVisionConfig with default values.')
if llm_config is None:
llm_config = {'architectures': ['InternLM2ForCausalLM']}
logger.info('llm_config is None. Initializing the LlamaConfig config with default values (`LlamaConfig`).')
self.vision_config = InternVisionConfig(**vision_config)
if llm_config.get('architectures')[0] == 'LlamaForCausalLM':
self.llm_config = LlamaConfig(**llm_config)
elif llm_config.get('architectures')[0] == 'InternLM2ForCausalLM':
self.llm_config = InternLM2Config(**llm_config)
else:
raise ValueError('Unsupported architecture: {}'.format(llm_config.get('architectures')[0]))
self.use_backbone_lora = use_backbone_lora
self.use_llm_lora = use_llm_lora
self.select_layer = select_layer
self.force_image_size = force_image_size
self.downsample_ratio = downsample_ratio
self.template = template
self.dynamic_image_size = dynamic_image_size
self.use_thumbnail = use_thumbnail
self.ps_version = ps_version # pixel shuffle version
self.min_dynamic_patch = min_dynamic_patch
self.max_dynamic_patch = max_dynamic_patch
logger.info(f'vision_select_layer: {self.select_layer}')
logger.info(f'ps_version: {self.ps_version}')
logger.info(f'min_dynamic_patch: {self.min_dynamic_patch}')
logger.info(f'max_dynamic_patch: {self.max_dynamic_patch}')
def to_dict(self):
"""
Serializes this instance to a Python dictionary. Override the default [`~PretrainedConfig.to_dict`].
Returns:
`Dict[str, any]`: Dictionary of all the attributes that make up this configuration instance,
"""
output = copy.deepcopy(self.__dict__)
output['vision_config'] = self.vision_config.to_dict()
output['llm_config'] = self.llm_config.to_dict()
output['model_type'] = self.__class__.model_type
output['use_backbone_lora'] = self.use_backbone_lora
output['use_llm_lora'] = self.use_llm_lora
output['select_layer'] = self.select_layer
output['force_image_size'] = self.force_image_size
output['downsample_ratio'] = self.downsample_ratio
output['template'] = self.template
output['dynamic_image_size'] = self.dynamic_image_size
output['use_thumbnail'] = self.use_thumbnail
output['ps_version'] = self.ps_version
output['min_dynamic_patch'] = self.min_dynamic_patch
output['max_dynamic_patch'] = self.max_dynamic_patch
return output

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conversation.py Normal file
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"""
Conversation prompt templates.
We kindly request that you import fastchat instead of copying this file if you wish to use it.
If you have changes in mind, please contribute back so the community can benefit collectively and continue to maintain these valuable templates.
Modified from https://github.com/lm-sys/FastChat/blob/main/fastchat/conversation.py
"""
import dataclasses
from enum import IntEnum, auto
from typing import Dict, List, Tuple, Union
class SeparatorStyle(IntEnum):
"""Separator styles."""
ADD_COLON_SINGLE = auto()
ADD_COLON_TWO = auto()
ADD_COLON_SPACE_SINGLE = auto()
NO_COLON_SINGLE = auto()
NO_COLON_TWO = auto()
ADD_NEW_LINE_SINGLE = auto()
LLAMA2 = auto()
CHATGLM = auto()
CHATML = auto()
CHATINTERN = auto()
DOLLY = auto()
RWKV = auto()
PHOENIX = auto()
ROBIN = auto()
FALCON_CHAT = auto()
CHATGLM3 = auto()
INTERNVL_ZH = auto()
MPT = auto()
@dataclasses.dataclass
class Conversation:
"""A class that manages prompt templates and keeps all conversation history."""
# The name of this template
name: str
# The template of the system prompt
system_template: str = '{system_message}'
# The system message
system_message: str = ''
# The names of two roles
roles: Tuple[str] = ('USER', 'ASSISTANT')
# All messages. Each item is (role, message).
messages: List[List[str]] = ()
# The number of few shot examples
offset: int = 0
# The separator style and configurations
sep_style: SeparatorStyle = SeparatorStyle.ADD_COLON_SINGLE
sep: str = '\n'
sep2: str = None
# Stop criteria (the default one is EOS token)
stop_str: Union[str, List[str]] = None
# Stops generation if meeting any token in this list
stop_token_ids: List[int] = None
def get_prompt(self) -> str:
"""Get the prompt for generation."""
system_prompt = self.system_template.format(system_message=self.system_message)
if self.sep_style == SeparatorStyle.ADD_COLON_SINGLE:
ret = system_prompt + self.sep
for role, message in self.messages:
if message:
ret += role + ': ' + message + self.sep
else:
ret += role + ':'
return ret
elif self.sep_style == SeparatorStyle.ADD_COLON_TWO:
seps = [self.sep, self.sep2]
ret = system_prompt + seps[0]
for i, (role, message) in enumerate(self.messages):
if message:
ret += role + ': ' + message + seps[i % 2]
else:
ret += role + ':'
return ret
elif self.sep_style == SeparatorStyle.ADD_COLON_SPACE_SINGLE:
ret = system_prompt + self.sep
for role, message in self.messages:
if message:
ret += role + ': ' + message + self.sep
else:
ret += role + ': ' # must be end with a space
return ret
elif self.sep_style == SeparatorStyle.ADD_NEW_LINE_SINGLE:
ret = '' if system_prompt == '' else system_prompt + self.sep
for role, message in self.messages:
if message:
ret += role + '\n' + message + self.sep
else:
ret += role + '\n'
return ret
elif self.sep_style == SeparatorStyle.NO_COLON_SINGLE:
ret = system_prompt
for role, message in self.messages:
if message:
ret += role + message + self.sep
else:
ret += role
return ret
elif self.sep_style == SeparatorStyle.NO_COLON_TWO:
seps = [self.sep, self.sep2]
ret = system_prompt
for i, (role, message) in enumerate(self.messages):
if message:
ret += role + message + seps[i % 2]
else:
ret += role
return ret
elif self.sep_style == SeparatorStyle.RWKV:
ret = system_prompt
for i, (role, message) in enumerate(self.messages):
if message:
ret += (
role
+ ': '
+ message.replace('\r\n', '\n').replace('\n\n', '\n')
)
ret += '\n\n'
else:
ret += role + ':'
return ret
elif self.sep_style == SeparatorStyle.LLAMA2:
seps = [self.sep, self.sep2]
if self.system_message:
ret = system_prompt
else:
ret = '[INST] '
for i, (role, message) in enumerate(self.messages):
tag = self.roles[i % 2]
if message:
if i == 0:
ret += message + ' '
else:
ret += tag + ' ' + message + seps[i % 2]
else:
ret += tag
return ret
elif self.sep_style == SeparatorStyle.CHATGLM:
# source: https://huggingface.co/THUDM/chatglm-6b/blob/1d240ba371910e9282298d4592532d7f0f3e9f3e/modeling_chatglm.py#L1302-L1308
# source2: https://huggingface.co/THUDM/chatglm2-6b/blob/e186c891cf64310ac66ef10a87e6635fa6c2a579/modeling_chatglm.py#L926
round_add_n = 1 if self.name == 'chatglm2' else 0
if system_prompt:
ret = system_prompt + self.sep
else:
ret = ''
for i, (role, message) in enumerate(self.messages):
if i % 2 == 0:
ret += f'[Round {i//2 + round_add_n}]{self.sep}'
if message:
ret += f'{role}：{message}{self.sep}'
else:
ret += f'{role}：'
return ret
elif self.sep_style == SeparatorStyle.CHATML:
ret = '' if system_prompt == '' else system_prompt + self.sep + '\n'
for role, message in self.messages:
if message:
ret += role + '\n' + message + self.sep + '\n'
else:
ret += role + '\n'
return ret
elif self.sep_style == SeparatorStyle.CHATGLM3:
ret = ''
if self.system_message:
ret += system_prompt
for role, message in self.messages:
if message:
ret += role + '\n' + ' ' + message
else:
ret += role
return ret
elif self.sep_style == SeparatorStyle.CHATINTERN:
# source: https://huggingface.co/internlm/internlm-chat-7b-8k/blob/bd546fa984b4b0b86958f56bf37f94aa75ab8831/modeling_internlm.py#L771
seps = [self.sep, self.sep2]
ret = system_prompt
for i, (role, message) in enumerate(self.messages):
# if i % 2 == 0:
# ret += "<s>"
if message:
ret += role + ':' + message + seps[i % 2] + '\n'
else:
ret += role + ':'
return ret
elif self.sep_style == SeparatorStyle.DOLLY:
seps = [self.sep, self.sep2]
ret = system_prompt
for i, (role, message) in enumerate(self.messages):
if message:
ret += role + ':\n' + message + seps[i % 2]
if i % 2 == 1:
ret += '\n\n'
else:
ret += role + ':\n'
return ret
elif self.sep_style == SeparatorStyle.PHOENIX:
ret = system_prompt
for role, message in self.messages:
if message:
ret += role + ': ' + '<s>' + message + '</s>'
else:
ret += role + ': ' + '<s>'
return ret
elif self.sep_style == SeparatorStyle.ROBIN:
ret = system_prompt + self.sep
for role, message in self.messages:
if message:
ret += role + ':\n' + message + self.sep
else:
ret += role + ':\n'
return ret
elif self.sep_style == SeparatorStyle.FALCON_CHAT:
ret = ''
if self.system_message:
ret += system_prompt + self.sep
for role, message in self.messages:
if message:
ret += role + ': ' + message + self.sep
else:
ret += role + ':'
return ret
elif self.sep_style == SeparatorStyle.INTERNVL_ZH:
seps = [self.sep, self.sep2]
ret = self.system_message + seps[0]
for i, (role, message) in enumerate(self.messages):
if message:
ret += role + ': ' + message + seps[i % 2]
else:
ret += role + ':'
return ret
elif self.sep_style == SeparatorStyle.MPT:
ret = system_prompt + self.sep
for role, message in self.messages:
if message:
if type(message) is tuple:
message, _, _ = message
ret += role + message + self.sep
else:
ret += role
return ret
else:
raise ValueError(f'Invalid style: {self.sep_style}')
def set_system_message(self, system_message: str):
"""Set the system message."""
self.system_message = system_message
def append_message(self, role: str, message: str):
"""Append a new message."""
self.messages.append([role, message])
def update_last_message(self, message: str):
"""Update the last output.
The last message is typically set to be None when constructing the prompt,
so we need to update it in-place after getting the response from a model.
"""
self.messages[-1][1] = message
def to_gradio_chatbot(self):
"""Convert the conversation to gradio chatbot format."""
ret = []
for i, (role, msg) in enumerate(self.messages[self.offset :]):
if i % 2 == 0:
ret.append([msg, None])
else:
ret[-1][-1] = msg
return ret
def to_openai_api_messages(self):
"""Convert the conversation to OpenAI chat completion format."""
ret = [{'role': 'system', 'content': self.system_message}]
for i, (_, msg) in enumerate(self.messages[self.offset :]):
if i % 2 == 0:
ret.append({'role': 'user', 'content': msg})
else:
if msg is not None:
ret.append({'role': 'assistant', 'content': msg})
return ret
def copy(self):
return Conversation(
name=self.name,
system_template=self.system_template,
system_message=self.system_message,
roles=self.roles,
messages=[[x, y] for x, y in self.messages],
offset=self.offset,
sep_style=self.sep_style,
sep=self.sep,
sep2=self.sep2,
stop_str=self.stop_str,
stop_token_ids=self.stop_token_ids,
)
def dict(self):
return {
'template_name': self.name,
'system_message': self.system_message,
'roles': self.roles,
'messages': self.messages,
'offset': self.offset,
}
# A global registry for all conversation templates
conv_templates: Dict[str, Conversation] = {}
def register_conv_template(template: Conversation, override: bool = False):
"""Register a new conversation template."""
if not override:
assert (
template.name not in conv_templates
), f'{template.name} has been registered.'
conv_templates[template.name] = template
def get_conv_template(name: str) -> Conversation:
"""Get a conversation template."""
return conv_templates[name].copy()
# Both Hermes-2 and internlm2-chat are chatml-format conversation templates. The difference
# is that during training, the preprocessing function for the Hermes-2 template doesn't add
# <s> at the beginning of the tokenized sequence, while the internlm2-chat template does.
# Therefore, they are completely equivalent during inference.
register_conv_template(
Conversation(
name='Hermes-2',
system_template='<|im_start|>system\n{system_message}',
# note: The new system prompt was not used here to avoid changes in benchmark performance.
# system_message='我是书生·万象，英文名是InternVL，是由上海人工智能实验室、清华大学及多家合作单位联合开发的多模态大语言模型。',
system_message='你是由上海人工智能实验室联合商汤科技开发的书生多模态大模型，英文名叫InternVL, 是一个有用无害的人工智能助手。',
roles=('<|im_start|>user\n', '<|im_start|>assistant\n'),
sep_style=SeparatorStyle.MPT,
sep='<|im_end|>',
stop_str='<|endoftext|>',
)
)
register_conv_template(
Conversation(
name='internlm2-chat',
system_template='<|im_start|>system\n{system_message}',
# note: The new system prompt was not used here to avoid changes in benchmark performance.
# system_message='我是书生·万象，英文名是InternVL，是由上海人工智能实验室、清华大学及多家合作单位联合开发的多模态大语言模型。',
system_message='你是由上海人工智能实验室联合商汤科技开发的书生多模态大模型，英文名叫InternVL, 是一个有用无害的人工智能助手。',
roles=('<|im_start|>user\n', '<|im_start|>assistant\n'),
sep_style=SeparatorStyle.MPT,
sep='<|im_end|>',
)
)
register_conv_template(
Conversation(
name='phi3-chat',
system_template='<|system|>\n{system_message}',
# note: The new system prompt was not used here to avoid changes in benchmark performance.
# system_message='我是书生·万象，英文名是InternVL，是由上海人工智能实验室、清华大学及多家合作单位联合开发的多模态大语言模型。',
system_message='你是由上海人工智能实验室联合商汤科技开发的书生多模态大模型，英文名叫InternVL, 是一个有用无害的人工智能助手。',
roles=('<|user|>\n', '<|assistant|>\n'),
sep_style=SeparatorStyle.MPT,
sep='<|end|>',
)
)
register_conv_template(
Conversation(
name='internvl2_5',
system_template='<|im_start|>system\n{system_message}',
system_message='你是书生·万象，英文名是InternVL，是由上海人工智能实验室、清华大学及多家合作单位联合开发的多模态大语言模型。',
roles=('<|im_start|>user\n', '<|im_start|>assistant\n'),
sep_style=SeparatorStyle.MPT,
sep='<|im_end|>\n',
)
)

8
generation_config.json Normal file
View File

@@ -0,0 +1,8 @@
{
"_from_model_config": true,
"eos_token_id": [
92542,
92543
],
"transformers_version": "4.49.0.dev0"
}

3
model.safetensors Normal file
View File

@@ -0,0 +1,3 @@
version https://git-lfs.github.com/spec/v1
oid sha256:86cc8956add5f1144986e0c0acb3bba7d2274403f13294b952280ab3500c4f8a
size 4411571040

430
modeling_intern_vit.py Normal file
View File

@@ -0,0 +1,430 @@
# --------------------------------------------------------
# InternVL
# Copyright (c) 2024 OpenGVLab
# Licensed under The MIT License [see LICENSE for details]
# --------------------------------------------------------
from typing import Optional, Tuple, Union
import torch
import torch.nn.functional as F
import torch.utils.checkpoint
from einops import rearrange
from timm.models.layers import DropPath
from torch import nn
from transformers.activations import ACT2FN
from transformers.modeling_outputs import (BaseModelOutput,
BaseModelOutputWithPooling)
from transformers.modeling_utils import PreTrainedModel
from transformers.utils import logging
from .configuration_intern_vit import InternVisionConfig
try:
from flash_attn.bert_padding import pad_input, unpad_input
from flash_attn.flash_attn_interface import \
flash_attn_varlen_qkvpacked_func
has_flash_attn = True
except:
print('FlashAttention2 is not installed.')
has_flash_attn = False
logger = logging.get_logger(__name__)
class FlashAttention(nn.Module):
"""Implement the scaled dot product attention with softmax.
Arguments
---------
softmax_scale: The temperature to use for the softmax attention.
(default: 1/sqrt(d_keys) where d_keys is computed at
runtime)
attention_dropout: The dropout rate to apply to the attention
(default: 0.0)
"""
def __init__(self, softmax_scale=None, attention_dropout=0.0, device=None, dtype=None):
super().__init__()
self.softmax_scale = softmax_scale
self.dropout_p = attention_dropout
def forward(self, qkv, key_padding_mask=None, causal=False, cu_seqlens=None,
max_s=None, need_weights=False):
"""Implements the multihead softmax attention.
Arguments
---------
qkv: The tensor containing the query, key, and value. (B, S, 3, H, D) if key_padding_mask is None
if unpadded: (nnz, 3, h, d)
key_padding_mask: a bool tensor of shape (B, S)
"""
assert not need_weights
assert qkv.dtype in [torch.float16, torch.bfloat16]
assert qkv.is_cuda
if cu_seqlens is None:
batch_size = qkv.shape[0]
seqlen = qkv.shape[1]
if key_padding_mask is None:
qkv = rearrange(qkv, 'b s ... -> (b s) ...')
max_s = seqlen
cu_seqlens = torch.arange(0, (batch_size + 1) * seqlen, step=seqlen, dtype=torch.int32,
device=qkv.device)
output = flash_attn_varlen_qkvpacked_func(
qkv, cu_seqlens, max_s, self.dropout_p if self.training else 0.0,
softmax_scale=self.softmax_scale, causal=causal
)
output = rearrange(output, '(b s) ... -> b s ...', b=batch_size)
else:
nheads = qkv.shape[-2]
x = rearrange(qkv, 'b s three h d -> b s (three h d)')
x_unpad, indices, cu_seqlens, max_s = unpad_input(x, key_padding_mask)
x_unpad = rearrange(x_unpad, 'nnz (three h d) -> nnz three h d', three=3, h=nheads)
output_unpad = flash_attn_varlen_qkvpacked_func(
x_unpad, cu_seqlens, max_s, self.dropout_p if self.training else 0.0,
softmax_scale=self.softmax_scale, causal=causal
)
output = rearrange(pad_input(rearrange(output_unpad, 'nnz h d -> nnz (h d)'),
indices, batch_size, seqlen),
'b s (h d) -> b s h d', h=nheads)
else:
assert max_s is not None
output = flash_attn_varlen_qkvpacked_func(
qkv, cu_seqlens, max_s, self.dropout_p if self.training else 0.0,
softmax_scale=self.softmax_scale, causal=causal
)
return output, None
class InternRMSNorm(nn.Module):
def __init__(self, hidden_size, eps=1e-6):
super().__init__()
self.weight = nn.Parameter(torch.ones(hidden_size))
self.variance_epsilon = eps
def forward(self, hidden_states):
input_dtype = hidden_states.dtype
hidden_states = hidden_states.to(torch.float32)
variance = hidden_states.pow(2).mean(-1, keepdim=True)
hidden_states = hidden_states * torch.rsqrt(variance + self.variance_epsilon)
return self.weight * hidden_states.to(input_dtype)
try:
from apex.normalization import FusedRMSNorm
InternRMSNorm = FusedRMSNorm # noqa
logger.info('Discovered apex.normalization.FusedRMSNorm - will use it instead of InternRMSNorm')
except ImportError:
# using the normal InternRMSNorm
pass
except Exception:
logger.warning('discovered apex but it failed to load, falling back to InternRMSNorm')
pass
NORM2FN = {
'rms_norm': InternRMSNorm,
'layer_norm': nn.LayerNorm,
}
class InternVisionEmbeddings(nn.Module):
def __init__(self, config: InternVisionConfig):
super().__init__()
self.config = config
self.embed_dim = config.hidden_size
self.image_size = config.image_size
self.patch_size = config.patch_size
self.class_embedding = nn.Parameter(
torch.randn(1, 1, self.embed_dim),
)
self.patch_embedding = nn.Conv2d(
in_channels=3, out_channels=self.embed_dim, kernel_size=self.patch_size, stride=self.patch_size
)
self.num_patches = (self.image_size // self.patch_size) ** 2
self.num_positions = self.num_patches + 1
self.position_embedding = nn.Parameter(torch.randn(1, self.num_positions, self.embed_dim))
def _get_pos_embed(self, pos_embed, H, W):
target_dtype = pos_embed.dtype
pos_embed = pos_embed.float().reshape(
1, self.image_size // self.patch_size, self.image_size // self.patch_size, -1).permute(0, 3, 1, 2)
pos_embed = F.interpolate(pos_embed, size=(H, W), mode='bicubic', align_corners=False). \
reshape(1, -1, H * W).permute(0, 2, 1).to(target_dtype)
return pos_embed
def forward(self, pixel_values: torch.FloatTensor) -> torch.Tensor:
target_dtype = self.patch_embedding.weight.dtype
patch_embeds = self.patch_embedding(pixel_values) # shape = [*, channel, width, height]
batch_size, _, height, width = patch_embeds.shape
patch_embeds = patch_embeds.flatten(2).transpose(1, 2)
class_embeds = self.class_embedding.expand(batch_size, 1, -1).to(target_dtype)
embeddings = torch.cat([class_embeds, patch_embeds], dim=1)
position_embedding = torch.cat([
self.position_embedding[:, :1, :],
self._get_pos_embed(self.position_embedding[:, 1:, :], height, width)
], dim=1)
embeddings = embeddings + position_embedding.to(target_dtype)
return embeddings
class InternAttention(nn.Module):
"""Multi-headed attention from 'Attention Is All You Need' paper"""
def __init__(self, config: InternVisionConfig):
super().__init__()
self.config = config
self.embed_dim = config.hidden_size
self.num_heads = config.num_attention_heads
self.use_flash_attn = config.use_flash_attn and has_flash_attn
if config.use_flash_attn and not has_flash_attn:
print('Warning: Flash Attention is not available, use_flash_attn is set to False.')
self.head_dim = self.embed_dim // self.num_heads
if self.head_dim * self.num_heads != self.embed_dim:
raise ValueError(
f'embed_dim must be divisible by num_heads (got `embed_dim`: {self.embed_dim} and `num_heads`:'
f' {self.num_heads}).'
)
self.scale = self.head_dim ** -0.5
self.qkv = nn.Linear(self.embed_dim, 3 * self.embed_dim, bias=config.qkv_bias)
self.attn_drop = nn.Dropout(config.attention_dropout)
self.proj_drop = nn.Dropout(config.dropout)
self.qk_normalization = config.qk_normalization
if self.qk_normalization:
self.q_norm = InternRMSNorm(self.embed_dim, eps=config.layer_norm_eps)
self.k_norm = InternRMSNorm(self.embed_dim, eps=config.layer_norm_eps)
if self.use_flash_attn:
self.inner_attn = FlashAttention(attention_dropout=config.attention_dropout)
self.proj = nn.Linear(self.embed_dim, self.embed_dim)
def _naive_attn(self, x):
B, N, C = x.shape
qkv = self.qkv(x).reshape(B, N, 3, self.num_heads, C // self.num_heads).permute(2, 0, 3, 1, 4)
q, k, v = qkv.unbind(0) # make torchscript happy (cannot use tensor as tuple)
if self.qk_normalization:
B_, H_, N_, D_ = q.shape
q = self.q_norm(q.transpose(1, 2).flatten(-2, -1)).view(B_, N_, H_, D_).transpose(1, 2)
k = self.k_norm(k.transpose(1, 2).flatten(-2, -1)).view(B_, N_, H_, D_).transpose(1, 2)
attn = ((q * self.scale) @ k.transpose(-2, -1))
attn = attn.softmax(dim=-1)
attn = self.attn_drop(attn)
x = (attn @ v).transpose(1, 2).reshape(B, N, C)
x = self.proj(x)
x = self.proj_drop(x)
return x
def _flash_attn(self, x, key_padding_mask=None, need_weights=False):
qkv = self.qkv(x)
qkv = rearrange(qkv, 'b s (three h d) -> b s three h d', three=3, h=self.num_heads)
if self.qk_normalization:
q, k, v = qkv.unbind(2)
q = self.q_norm(q.flatten(-2, -1)).view(q.shape)
k = self.k_norm(k.flatten(-2, -1)).view(k.shape)
qkv = torch.stack([q, k, v], dim=2)
context, _ = self.inner_attn(
qkv, key_padding_mask=key_padding_mask, need_weights=need_weights, causal=False
)
outs = self.proj(rearrange(context, 'b s h d -> b s (h d)'))
outs = self.proj_drop(outs)
return outs
def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
x = self._naive_attn(hidden_states) if not self.use_flash_attn else self._flash_attn(hidden_states)
return x
class InternMLP(nn.Module):
def __init__(self, config: InternVisionConfig):
super().__init__()
self.config = config
self.act = ACT2FN[config.hidden_act]
self.fc1 = nn.Linear(config.hidden_size, config.intermediate_size)
self.fc2 = nn.Linear(config.intermediate_size, config.hidden_size)
def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
hidden_states = self.fc1(hidden_states)
hidden_states = self.act(hidden_states)
hidden_states = self.fc2(hidden_states)
return hidden_states
class InternVisionEncoderLayer(nn.Module):
def __init__(self, config: InternVisionConfig, drop_path_rate: float):
super().__init__()
self.embed_dim = config.hidden_size
self.intermediate_size = config.intermediate_size
self.norm_type = config.norm_type
self.attn = InternAttention(config)
self.mlp = InternMLP(config)
self.norm1 = NORM2FN[self.norm_type](self.embed_dim, eps=config.layer_norm_eps)
self.norm2 = NORM2FN[self.norm_type](self.embed_dim, eps=config.layer_norm_eps)
self.ls1 = nn.Parameter(config.initializer_factor * torch.ones(self.embed_dim))
self.ls2 = nn.Parameter(config.initializer_factor * torch.ones(self.embed_dim))
self.drop_path1 = DropPath(drop_path_rate) if drop_path_rate > 0. else nn.Identity()
self.drop_path2 = DropPath(drop_path_rate) if drop_path_rate > 0. else nn.Identity()
def forward(
self,
hidden_states: torch.Tensor,
) -> Tuple[torch.FloatTensor, Optional[torch.FloatTensor], Optional[Tuple[torch.FloatTensor]]]:
"""
Args:
hidden_states (`Tuple[torch.FloatTensor, Optional[torch.FloatTensor]]`): input to the layer of shape `(batch, seq_len, embed_dim)`
"""
hidden_states = hidden_states + self.drop_path1(self.attn(self.norm1(hidden_states).to(hidden_states.dtype)) * self.ls1)
hidden_states = hidden_states + self.drop_path2(self.mlp(self.norm2(hidden_states).to(hidden_states.dtype)) * self.ls2)
return hidden_states
class InternVisionEncoder(nn.Module):
"""
Transformer encoder consisting of `config.num_hidden_layers` self attention layers. Each layer is a
[`InternEncoderLayer`].
Args:
config (`InternConfig`):
The corresponding vision configuration for the `InternEncoder`.
"""
def __init__(self, config: InternVisionConfig):
super().__init__()
self.config = config
# stochastic depth decay rule
dpr = [x.item() for x in torch.linspace(0, config.drop_path_rate, config.num_hidden_layers)]
self.layers = nn.ModuleList([
InternVisionEncoderLayer(config, dpr[idx]) for idx in range(config.num_hidden_layers)])
self.gradient_checkpointing = True
def forward(
self,
inputs_embeds,
output_hidden_states: Optional[bool] = None,
return_dict: Optional[bool] = None,
) -> Union[Tuple, BaseModelOutput]:
r"""
Args:
inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`):
Embedded representation of the inputs. Should be float, not int tokens.
output_hidden_states (`bool`, *optional*):
Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors
for more detail.
return_dict (`bool`, *optional*):
Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
"""
output_hidden_states = (
output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
)
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
encoder_states = () if output_hidden_states else None
hidden_states = inputs_embeds
for idx, encoder_layer in enumerate(self.layers):
if output_hidden_states:
encoder_states = encoder_states + (hidden_states,)
if self.gradient_checkpointing and self.training:
layer_outputs = torch.utils.checkpoint.checkpoint(
encoder_layer,
hidden_states)
else:
layer_outputs = encoder_layer(
hidden_states,
)
hidden_states = layer_outputs
if output_hidden_states:
encoder_states = encoder_states + (hidden_states,)
if not return_dict:
return tuple(v for v in [hidden_states, encoder_states] if v is not None)
return BaseModelOutput(
last_hidden_state=hidden_states, hidden_states=encoder_states
)
class InternVisionModel(PreTrainedModel):
main_input_name = 'pixel_values'
_supports_flash_attn_2 = True
config_class = InternVisionConfig
_no_split_modules = ['InternVisionEncoderLayer']
def __init__(self, config: InternVisionConfig):
super().__init__(config)
self.config = config
self.embeddings = InternVisionEmbeddings(config)
self.encoder = InternVisionEncoder(config)
def resize_pos_embeddings(self, old_size, new_size, patch_size):
pos_emb = self.embeddings.position_embedding
_, num_positions, embed_dim = pos_emb.shape
cls_emb = pos_emb[:, :1, :]
pos_emb = pos_emb[:, 1:, :].reshape(1, old_size // patch_size, old_size // patch_size, -1).permute(0, 3, 1, 2)
pos_emb = F.interpolate(pos_emb.float(), size=new_size // patch_size, mode='bicubic', align_corners=False)
pos_emb = pos_emb.to(cls_emb.dtype).reshape(1, embed_dim, -1).permute(0, 2, 1)
pos_emb = torch.cat([cls_emb, pos_emb], dim=1)
self.embeddings.position_embedding = nn.Parameter(pos_emb)
self.embeddings.image_size = new_size
logger.info('Resized position embeddings from {} to {}'.format(old_size, new_size))
def get_input_embeddings(self):
return self.embeddings
def forward(
self,
pixel_values: Optional[torch.FloatTensor] = None,
output_hidden_states: Optional[bool] = None,
return_dict: Optional[bool] = None,
pixel_embeds: Optional[torch.FloatTensor] = None,
) -> Union[Tuple, BaseModelOutputWithPooling]:
output_hidden_states = (
output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
)
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
if pixel_values is None and pixel_embeds is None:
raise ValueError('You have to specify pixel_values or pixel_embeds')
if pixel_embeds is not None:
hidden_states = pixel_embeds
else:
if len(pixel_values.shape) == 4:
hidden_states = self.embeddings(pixel_values)
else:
raise ValueError(f'wrong pixel_values size: {pixel_values.shape}')
encoder_outputs = self.encoder(
inputs_embeds=hidden_states,
output_hidden_states=output_hidden_states,
return_dict=return_dict,
)
last_hidden_state = encoder_outputs.last_hidden_state
pooled_output = last_hidden_state[:, 0, :]
if not return_dict:
return (last_hidden_state, pooled_output) + encoder_outputs[1:]
return BaseModelOutputWithPooling(
last_hidden_state=last_hidden_state,
pooler_output=pooled_output,
hidden_states=encoder_outputs.hidden_states,
attentions=encoder_outputs.attentions,
)

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# --------------------------------------------------------
# InternVL
# Copyright (c) 2024 OpenGVLab
# Licensed under The MIT License [see LICENSE for details]
# --------------------------------------------------------
import warnings
from typing import List, Optional, Tuple, Union
import torch.utils.checkpoint
import transformers
from torch import nn
from torch.nn import CrossEntropyLoss
from transformers import (AutoModel, GenerationConfig, LlamaForCausalLM,
LlamaTokenizer)
from transformers.modeling_outputs import CausalLMOutputWithPast
from transformers.modeling_utils import PreTrainedModel
from transformers.utils import ModelOutput, logging
from .configuration_internvl_chat import InternVLChatConfig
from .conversation import get_conv_template
from .modeling_intern_vit import InternVisionModel, has_flash_attn
from .modeling_internlm2 import InternLM2ForCausalLM
logger = logging.get_logger(__name__)
def version_cmp(v1, v2, op='eq'):
import operator
from packaging import version
op_func = getattr(operator, op)
return op_func(version.parse(v1), version.parse(v2))
class InternVLChatModel(PreTrainedModel):
config_class = InternVLChatConfig
main_input_name = 'pixel_values'
base_model_prefix = 'language_model'
_supports_flash_attn_2 = True
_no_split_modules = ['InternVisionModel', 'LlamaDecoderLayer', 'InternLM2DecoderLayer']
def __init__(self, config: InternVLChatConfig, vision_model=None, language_model=None, use_flash_attn=True):
super().__init__(config)
assert version_cmp(transformers.__version__, '4.37.0', 'ge')
image_size = config.force_image_size or config.vision_config.image_size
patch_size = config.vision_config.patch_size
self.patch_size = patch_size
self.select_layer = config.select_layer
self.template = config.template
self.num_image_token = int((image_size // patch_size) ** 2 * (config.downsample_ratio ** 2))
self.downsample_ratio = config.downsample_ratio
self.ps_version = config.ps_version
use_flash_attn = use_flash_attn if has_flash_attn else False
config.vision_config.use_flash_attn = True if use_flash_attn else False
config.llm_config.attn_implementation = 'flash_attention_2' if use_flash_attn else 'eager'
logger.info(f'num_image_token: {self.num_image_token}')
logger.info(f'ps_version: {self.ps_version}')
if vision_model is not None:
self.vision_model = vision_model
else:
self.vision_model = InternVisionModel(config.vision_config)
if language_model is not None:
self.language_model = language_model
else:
if config.llm_config.architectures[0] == 'LlamaForCausalLM':
self.language_model = LlamaForCausalLM(config.llm_config)
elif config.llm_config.architectures[0] == 'InternLM2ForCausalLM':
self.language_model = InternLM2ForCausalLM(config.llm_config)
else:
raise NotImplementedError(f'{config.llm_config.architectures[0]} is not implemented.')
vit_hidden_size = config.vision_config.hidden_size
llm_hidden_size = config.llm_config.hidden_size
self.mlp1 = nn.Sequential(
nn.LayerNorm(vit_hidden_size * int(1 / self.downsample_ratio) ** 2),
nn.Linear(vit_hidden_size * int(1 / self.downsample_ratio) ** 2, llm_hidden_size),
nn.GELU(),
nn.Linear(llm_hidden_size, llm_hidden_size)
)
self.img_context_token_id = None
self.conv_template = get_conv_template(self.template)
self.system_message = self.conv_template.system_message
def forward(
self,
pixel_values: torch.FloatTensor,
input_ids: torch.LongTensor = None,
attention_mask: Optional[torch.Tensor] = None,
position_ids: Optional[torch.LongTensor] = None,
image_flags: Optional[torch.LongTensor] = None,
past_key_values: Optional[List[torch.FloatTensor]] = None,
labels: Optional[torch.LongTensor] = None,
use_cache: Optional[bool] = None,
output_attentions: Optional[bool] = None,
output_hidden_states: Optional[bool] = None,
return_dict: Optional[bool] = None,
) -> Union[Tuple, CausalLMOutputWithPast]:
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
image_flags = image_flags.squeeze(-1)
input_embeds = self.language_model.get_input_embeddings()(input_ids).clone()
vit_embeds = self.extract_feature(pixel_values)
vit_embeds = vit_embeds[image_flags == 1]
vit_batch_size = pixel_values.shape[0]
B, N, C = input_embeds.shape
input_embeds = input_embeds.reshape(B * N, C)
if torch.distributed.is_initialized() and torch.distributed.get_rank() == 0:
print(f'dynamic ViT batch size: {vit_batch_size}, images per sample: {vit_batch_size / B}, dynamic token length: {N}')
input_ids = input_ids.reshape(B * N)
selected = (input_ids == self.img_context_token_id)
try:
input_embeds[selected] = input_embeds[selected] * 0.0 + vit_embeds.reshape(-1, C)
except Exception as e:
vit_embeds = vit_embeds.reshape(-1, C)
print(f'warning: {e}, input_embeds[selected].shape={input_embeds[selected].shape}, '
f'vit_embeds.shape={vit_embeds.shape}')
n_token = selected.sum()
input_embeds[selected] = input_embeds[selected] * 0.0 + vit_embeds[:n_token]
input_embeds = input_embeds.reshape(B, N, C)
outputs = self.language_model(
inputs_embeds=input_embeds,
attention_mask=attention_mask,
position_ids=position_ids,
past_key_values=past_key_values,
use_cache=use_cache,
output_attentions=output_attentions,
output_hidden_states=output_hidden_states,
return_dict=return_dict,
)
logits = outputs.logits
loss = None
if labels is not None:
# Shift so that tokens < n predict n
shift_logits = logits[..., :-1, :].contiguous()
shift_labels = labels[..., 1:].contiguous()
# Flatten the tokens
loss_fct = CrossEntropyLoss()
shift_logits = shift_logits.view(-1, self.language_model.config.vocab_size)
shift_labels = shift_labels.view(-1)
# Enable model parallelism
shift_labels = shift_labels.to(shift_logits.device)
loss = loss_fct(shift_logits, shift_labels)
if not return_dict:
output = (logits,) + outputs[1:]
return (loss,) + output if loss is not None else output
return CausalLMOutputWithPast(
loss=loss,
logits=logits,
past_key_values=outputs.past_key_values,
hidden_states=outputs.hidden_states,
attentions=outputs.attentions,
)
def pixel_shuffle(self, x, scale_factor=0.5):
n, w, h, c = x.size()
# N, W, H, C --> N, W, H * scale, C // scale
x = x.view(n, w, int(h * scale_factor), int(c / scale_factor))
# N, W, H * scale, C // scale --> N, H * scale, W, C // scale
x = x.permute(0, 2, 1, 3).contiguous()
# N, H * scale, W, C // scale --> N, H * scale, W * scale, C // (scale ** 2)
x = x.view(n, int(h * scale_factor), int(w * scale_factor),
int(c / (scale_factor * scale_factor)))
if self.ps_version == 'v1':
warnings.warn("In ps_version 'v1', the height and width have not been swapped back, "
'which results in a transposed image.')
else:
x = x.permute(0, 2, 1, 3).contiguous()
return x
def extract_feature(self, pixel_values):
if self.select_layer == -1:
vit_embeds = self.vision_model(
pixel_values=pixel_values,
output_hidden_states=False,
return_dict=True).last_hidden_state
else:
vit_embeds = self.vision_model(
pixel_values=pixel_values,
output_hidden_states=True,
return_dict=True).hidden_states[self.select_layer]
vit_embeds = vit_embeds[:, 1:, :]
h = w = int(vit_embeds.shape[1] ** 0.5)
vit_embeds = vit_embeds.reshape(vit_embeds.shape[0], h, w, -1)
vit_embeds = self.pixel_shuffle(vit_embeds, scale_factor=self.downsample_ratio)
vit_embeds = vit_embeds.reshape(vit_embeds.shape[0], -1, vit_embeds.shape[-1])
vit_embeds = self.mlp1(vit_embeds)
return vit_embeds
def batch_chat(self, tokenizer, pixel_values, questions, generation_config, num_patches_list=None,
history=None, return_history=False, IMG_START_TOKEN='<img>', IMG_END_TOKEN='</img>',
IMG_CONTEXT_TOKEN='<IMG_CONTEXT>', verbose=False, image_counts=None):
if history is not None or return_history:
print('Now multi-turn chat is not supported in batch_chat.')
raise NotImplementedError
if image_counts is not None:
num_patches_list = image_counts
print('Warning: `image_counts` is deprecated. Please use `num_patches_list` instead.')
img_context_token_id = tokenizer.convert_tokens_to_ids(IMG_CONTEXT_TOKEN)
self.img_context_token_id = img_context_token_id
if verbose and pixel_values is not None:
image_bs = pixel_values.shape[0]
print(f'dynamic ViT batch size: {image_bs}')
queries = []
for idx, num_patches in enumerate(num_patches_list):
question = questions[idx]
if pixel_values is not None and '<image>' not in question:
question = '<image>\n' + question
template = get_conv_template(self.template)
template.system_message = self.system_message
template.append_message(template.roles[0], question)
template.append_message(template.roles[1], None)
query = template.get_prompt()
image_tokens = IMG_START_TOKEN + IMG_CONTEXT_TOKEN * self.num_image_token * num_patches + IMG_END_TOKEN
query = query.replace('<image>', image_tokens, 1)
queries.append(query)
tokenizer.padding_side = 'left'
model_inputs = tokenizer(queries, return_tensors='pt', padding=True)
input_ids = model_inputs['input_ids'].to(self.device)
attention_mask = model_inputs['attention_mask'].to(self.device)
eos_token_id = tokenizer.convert_tokens_to_ids(template.sep.strip())
generation_config['eos_token_id'] = eos_token_id
generation_output = self.generate(
pixel_values=pixel_values,
input_ids=input_ids,
attention_mask=attention_mask,
**generation_config
)
responses = tokenizer.batch_decode(generation_output, skip_special_tokens=True)
responses = [response.split(template.sep.strip())[0].strip() for response in responses]
return responses
def chat(self, tokenizer, pixel_values, question, generation_config, history=None, return_history=False,
num_patches_list=None, IMG_START_TOKEN='<img>', IMG_END_TOKEN='</img>', IMG_CONTEXT_TOKEN='<IMG_CONTEXT>',
verbose=False):
if history is None and pixel_values is not None and '<image>' not in question:
question = '<image>\n' + question
if num_patches_list is None:
num_patches_list = [pixel_values.shape[0]] if pixel_values is not None else []
assert pixel_values is None or len(pixel_values) == sum(num_patches_list)
img_context_token_id = tokenizer.convert_tokens_to_ids(IMG_CONTEXT_TOKEN)
self.img_context_token_id = img_context_token_id
template = get_conv_template(self.template)
template.system_message = self.system_message
eos_token_id = tokenizer.convert_tokens_to_ids(template.sep.strip())
history = [] if history is None else history
for (old_question, old_answer) in history:
template.append_message(template.roles[0], old_question)
template.append_message(template.roles[1], old_answer)
template.append_message(template.roles[0], question)
template.append_message(template.roles[1], None)
query = template.get_prompt()
if verbose and pixel_values is not None:
image_bs = pixel_values.shape[0]
print(f'dynamic ViT batch size: {image_bs}')
for num_patches in num_patches_list:
image_tokens = IMG_START_TOKEN + IMG_CONTEXT_TOKEN * self.num_image_token * num_patches + IMG_END_TOKEN
query = query.replace('<image>', image_tokens, 1)
model_inputs = tokenizer(query, return_tensors='pt')
input_ids = model_inputs['input_ids'].to(self.device)
attention_mask = model_inputs['attention_mask'].to(self.device)
generation_config['eos_token_id'] = eos_token_id
generation_output = self.generate(
pixel_values=pixel_values,
input_ids=input_ids,
attention_mask=attention_mask,
**generation_config
)
response = tokenizer.batch_decode(generation_output, skip_special_tokens=True)[0]
response = response.split(template.sep.strip())[0].strip()
history.append((question, response))
if return_history:
return response, history
else:
query_to_print = query.replace(IMG_CONTEXT_TOKEN, '')
query_to_print = query_to_print.replace(f'{IMG_START_TOKEN}{IMG_END_TOKEN}', '<image>')
if verbose:
print(query_to_print, response)
return response
@torch.no_grad()
def generate(
self,
pixel_values: Optional[torch.FloatTensor] = None,
input_ids: Optional[torch.FloatTensor] = None,
attention_mask: Optional[torch.LongTensor] = None,
visual_features: Optional[torch.FloatTensor] = None,
generation_config: Optional[GenerationConfig] = None,
output_hidden_states: Optional[bool] = None,
**generate_kwargs,
) -> torch.LongTensor:
assert self.img_context_token_id is not None
if pixel_values is not None:
if visual_features is not None:
vit_embeds = visual_features
else:
vit_embeds = self.extract_feature(pixel_values)
input_embeds = self.language_model.get_input_embeddings()(input_ids)
B, N, C = input_embeds.shape
input_embeds = input_embeds.reshape(B * N, C)
input_ids = input_ids.reshape(B * N)
selected = (input_ids == self.img_context_token_id)
assert selected.sum() != 0
input_embeds[selected] = vit_embeds.reshape(-1, C).to(input_embeds.device)
input_embeds = input_embeds.reshape(B, N, C)
else:
input_embeds = self.language_model.get_input_embeddings()(input_ids)
outputs = self.language_model.generate(
inputs_embeds=input_embeds,
attention_mask=attention_mask,
generation_config=generation_config,
output_hidden_states=output_hidden_states,
use_cache=True,
**generate_kwargs,
)
return outputs

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special_tokens_map.json Normal file
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{
"additional_special_tokens": [
"<|im_start|>",
"<|im_end|>",
"<|action_start|>",
"<|action_end|>",
"<|interpreter|>",
"<|plugin|>",
"<img>",
"</img>",
"<IMG_CONTEXT>",
"<quad>",
"</quad>",
"<ref>",
"</ref>",
"<box>",
"</box>"
],
"bos_token": {
"content": "<s>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false
},
"eos_token": {
"content": "</s>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false
},
"pad_token": {
"content": "</s>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false
},
"unk_token": {
"content": "<unk>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false
}
}

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tokenization_internlm2.py Normal file
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# Copyright (c) The InternLM team and The HuggingFace Inc. team. All rights reserved.
#
# This code is based on transformers/src/transformers/models/llama/tokenization_llama.py
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Tokenization classes for InternLM."""
import os
from shutil import copyfile
from typing import Any, Dict, List, Optional, Tuple
import sentencepiece as spm
from transformers.tokenization_utils import PreTrainedTokenizer
from transformers.utils import logging
logger = logging.get_logger(__name__)
VOCAB_FILES_NAMES = {'vocab_file': './tokenizer.model'}
PRETRAINED_VOCAB_FILES_MAP = {}
# Modified from transformers.model.llama.tokenization_llama.LlamaTokenizer
class InternLM2Tokenizer(PreTrainedTokenizer):
"""
Construct a InternLM2 tokenizer. Based on byte-level Byte-Pair-Encoding.
Args:
vocab_file (`str`):
Path to the vocabulary file.
"""
vocab_files_names = VOCAB_FILES_NAMES
pretrained_vocab_files_map = PRETRAINED_VOCAB_FILES_MAP
model_input_names = ['input_ids', 'attention_mask']
_auto_class = 'AutoTokenizer'
def __init__(
self,
vocab_file,
unk_token='<unk>',
bos_token='<s>',
eos_token='</s>',
pad_token='</s>',
sp_model_kwargs: Optional[Dict[str, Any]] = None,
add_bos_token=True,
add_eos_token=False,
decode_with_prefix_space=False,
clean_up_tokenization_spaces=False,
**kwargs,
):
self.sp_model_kwargs = {} if sp_model_kwargs is None else sp_model_kwargs
self.vocab_file = vocab_file
self.add_bos_token = add_bos_token
self.add_eos_token = add_eos_token
self.decode_with_prefix_space = decode_with_prefix_space
self.sp_model = spm.SentencePieceProcessor(**self.sp_model_kwargs)
self.sp_model.Load(vocab_file)
self._no_prefix_space_tokens = None
super().__init__(
bos_token=bos_token,
eos_token=eos_token,
unk_token=unk_token,
pad_token=pad_token,
clean_up_tokenization_spaces=clean_up_tokenization_spaces,
**kwargs,
)
@property
def no_prefix_space_tokens(self):
if self._no_prefix_space_tokens is None:
vocab = self.convert_ids_to_tokens(list(range(self.vocab_size)))
self._no_prefix_space_tokens = {i for i, tok in enumerate(vocab) if not tok.startswith('▁')}
return self._no_prefix_space_tokens
@property
def vocab_size(self):
"""Returns vocab size"""
return self.sp_model.get_piece_size()
@property
def bos_token_id(self) -> Optional[int]:
return self.sp_model.bos_id()
@property
def eos_token_id(self) -> Optional[int]:
return self.sp_model.eos_id()
def get_vocab(self):
"""Returns vocab as a dict"""
vocab = {self.convert_ids_to_tokens(i): i for i in range(self.vocab_size)}
vocab.update(self.added_tokens_encoder)
return vocab
def _tokenize(self, text):
"""Returns a tokenized string."""
return self.sp_model.encode(text, out_type=str)
def _convert_token_to_id(self, token):
"""Converts a token (str) in an id using the vocab."""
return self.sp_model.piece_to_id(token)
def _convert_id_to_token(self, index):
"""Converts an index (integer) in a token (str) using the vocab."""
token = self.sp_model.IdToPiece(index)
return token
def _maybe_add_prefix_space(self, tokens, decoded):
if tokens and tokens[0] not in self.no_prefix_space_tokens:
return ' ' + decoded
else:
return decoded
def convert_tokens_to_string(self, tokens):
"""Converts a sequence of tokens (string) in a single string."""
current_sub_tokens = []
out_string = ''
prev_is_special = False
for token in tokens:
# make sure that special tokens are not decoded using sentencepiece model
if token in self.all_special_tokens:
if not prev_is_special:
out_string += ' '
out_string += self.sp_model.decode(current_sub_tokens) + token
prev_is_special = True
current_sub_tokens = []
else:
current_sub_tokens.append(token)
prev_is_special = False
out_string += self.sp_model.decode(current_sub_tokens)
out_string = self.clean_up_tokenization(out_string)
out_string = self._maybe_add_prefix_space(tokens=tokens, decoded=out_string)
return out_string[1:]
def save_vocabulary(self, save_directory, filename_prefix: Optional[str] = None) -> Tuple[str]:
"""
Save the vocabulary and special tokens file to a directory.
Args:
save_directory (`str`):
The directory in which to save the vocabulary.
Returns:
`Tuple(str)`: Paths to the files saved.
"""
if not os.path.isdir(save_directory):
logger.error(f'Vocabulary path ({save_directory}) should be a directory')
return
out_vocab_file = os.path.join(
save_directory, (filename_prefix + '-' if filename_prefix else '') + VOCAB_FILES_NAMES['vocab_file']
)
if os.path.abspath(self.vocab_file) != os.path.abspath(out_vocab_file) and os.path.isfile(self.vocab_file):
copyfile(self.vocab_file, out_vocab_file)
elif not os.path.isfile(self.vocab_file):
with open(out_vocab_file, 'wb') as fi:
content_spiece_model = self.sp_model.serialized_model_proto()
fi.write(content_spiece_model)
return (out_vocab_file,)
def build_inputs_with_special_tokens(self, token_ids_0, token_ids_1=None):
if self.add_bos_token:
bos_token_ids = [self.bos_token_id]
else:
bos_token_ids = []
output = bos_token_ids + token_ids_0
if token_ids_1 is not None:
output = output + token_ids_1
if self.add_eos_token:
output = output + [self.eos_token_id]
return output
def get_special_tokens_mask(
self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None, already_has_special_tokens: bool = False
) -> List[int]:
"""
Retrieve sequence ids from a token list that has no special tokens added. This method is called when adding
special tokens using the tokenizer `prepare_for_model` method.
Args:
token_ids_0 (`List[int]`):
List of IDs.
token_ids_1 (`List[int]`, *optional*):
Optional second list of IDs for sequence pairs.
already_has_special_tokens (`bool`, *optional*, defaults to `False`):
Whether or not the token list is already formatted with special tokens for the model.
Returns:
`List[int]`: A list of integers in the range [0, 1]: 1 for a special token, 0 for a sequence token.
"""
if already_has_special_tokens:
return super().get_special_tokens_mask(
token_ids_0=token_ids_0, token_ids_1=token_ids_1, already_has_special_tokens=True
)
if token_ids_1 is None:
return [1] + ([0] * len(token_ids_0)) + [1]
return [1] + ([0] * len(token_ids_0)) + [1, 1] + ([0] * len(token_ids_1)) + [1]
def create_token_type_ids_from_sequences(
self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None
) -> List[int]:
"""
Create a mask from the two sequences passed to be used in a sequence-pair classification task. T5 does not make
use of token type ids, therefore a list of zeros is returned.
Args:
token_ids_0 (`List[int]`):
List of IDs.
token_ids_1 (`List[int]`, *optional*):
Optional second list of IDs for sequence pairs.
Returns:
`List[int]`: List of zeros.
"""
eos = [self.eos_token_id]
if token_ids_1 is None:
return len(token_ids_0 + eos) * [0]
return len(token_ids_0 + eos + token_ids_1 + eos) * [0]

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tokenizer.model Normal file
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version https://git-lfs.github.com/spec/v1
oid sha256:f868398fc4e05ee1e8aeba95ddf18ddcc45b8bce55d5093bead5bbf80429b48b
size 1477754

180
tokenizer_config.json Normal file
View File

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{
"added_tokens_decoder": {
"0": {
"content": "<unk>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false,
"special": true
},
"1": {
"content": "<s>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false,
"special": true
},
"2": {
"content": "</s>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false,
"special": true
},
"92538": {
"content": "<|plugin|>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false,
"special": true
},
"92539": {
"content": "<|interpreter|>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false,
"special": true
},
"92540": {
"content": "<|action_end|>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false,
"special": true
},
"92541": {
"content": "<|action_start|>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false,
"special": true
},
"92542": {
"content": "<|im_end|>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false,
"special": true
},
"92543": {
"content": "<|im_start|>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false,
"special": true
},
"92544": {
"content": "<img>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false,
"special": true
},
"92545": {
"content": "</img>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false,
"special": true
},
"92546": {
"content": "<IMG_CONTEXT>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false,
"special": true
},
"92547": {
"content": "<quad>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false,
"special": true
},
"92548": {
"content": "</quad>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false,
"special": true
},
"92549": {
"content": "<ref>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false,
"special": true
},
"92550": {
"content": "</ref>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false,
"special": true
},
"92551": {
"content": "<box>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false,
"special": true
},
"92552": {
"content": "</box>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false,
"special": true
}
},
"additional_special_tokens": [
"<|im_start|>",
"<|im_end|>",
"<|action_start|>",
"<|action_end|>",
"<|interpreter|>",
"<|plugin|>",
"<img>",
"</img>",
"<IMG_CONTEXT>",
"<quad>",
"</quad>",
"<ref>",
"</ref>",
"<box>",
"</box>"
],
"auto_map": {
"AutoTokenizer": [
"tokenization_internlm2.InternLM2Tokenizer",
null
]
},
"bos_token": "<s>",
"chat_template": "{{ bos_token }}{% for message in messages %}\n {%- if message['role'] == 'user' and template -%}\n {{- '<|im_start|>' + message['role'] -}}\n {{ '\n# Template:' }}\n {{- '\n' + template }}\n {% if examples %}\n {{- '# Examples:' }}\n {% for example in examples %}\n {{- '## Input:\n' }}\n {{- example['input'] + '\n' }}\n {{- '## Output:\n' }}\n {{- example['output'] | trim }}\n {% endfor %}\n {%- endif %}\n {{- '# Context:' }}\n {% if message['content'] is string %}\n {{- message['content'] | trim }}\n {% else %}\n {% for content in message['content'] %}\n {%- if content is string %}\n {{- content | trim }}\n {%- elif content['type'] == 'text' %}\n {{- content['text'] | trim }}\n {%- endif %}\n {% endfor %}\n {% endif %}\n {{- '<|im_end|> '}}\n {% else %}\n {{- '<|im_start|>' + message['role'] }}\n {% if message['content'] is string %}\n {{- message['content'] | trim }}\n {% else %}\n {% for content in message['content'] %}\n {%- if content is string %}\n {{- content | trim }}\n {%- elif content['type'] == 'text' %}\n {{- content['text'] | trim }}\n {%- endif %}\n {% endfor %}\n {% endif %}\n {{- '<|im_end|> '}}\n {% endif %}\n{% endfor -%}\n{%- if add_generation_prompt %}\n {{- '<|im_start|>assistant' }}\n{% endif -%}\n",
"clean_up_tokenization_spaces": false,
"eos_token": "</s>",
"extra_special_tokens": {},
"model_max_length": 8192,
"pad_token": "</s>",
"tokenizer_class": "InternLM2Tokenizer",
"unk_token": "<unk>"
}