117 lines
4.0 KiB
Markdown
117 lines
4.0 KiB
Markdown
---
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language:
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- en
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pipeline_tag: image-to-text
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inference: false
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arxiv: 2304.08485
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license: apache-2.0
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datasets:
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- liuhaotian/LLaVA-Pretrain
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- liuhaotian/LLaVA-Instruct-150K
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---
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# LLaVA Model Card
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Below is the model card of TinyLlava model 1.1b.
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Check out also the Google Colab demo to run Llava on a free-tier Google Colab instance: [](https://colab.research.google.com/drive/1XtdA_UoyNzqiEYVR-iWA-xmit8Y2tKV2#scrollTo=DFVZgElEQk3x)
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## Model details
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**Model type:**
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TinyLLaVA is an open-source chatbot trained by fine-tuning TinyLlama on GPT-generated multimodal instruction-following data.
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It is an auto-regressive language model, based on the transformer architecture.
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**Paper or resources for more information:**
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https://llava-vl.github.io/
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## How to use the model
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First, make sure to have `transformers >= 4.35.3`.
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The model supports multi-image and multi-prompt generation. Meaning that you can pass multiple images in your prompt. Make sure also to follow the correct prompt template (`USER: xxx\nASSISTANT:`) and add the token `<image>` to the location where you want to query images:
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### Using `pipeline`:
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Below we used [`"YouLiXiya/tinyllava-v1.0-1.1b-hf"`](https://huggingface.co/YouLiXiya/tinyllava-v1.0-1.1b-hf) checkpoint.
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```python
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from transformers import pipeline
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from PIL import Image
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import requests
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model_id = "YouLiXiya/tinyllava-v1.0-1.1b-hf"
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pipe = pipeline("image-to-text", model=model_id)
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url = "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/transformers/tasks/ai2d-demo.jpg"
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image = Image.open(requests.get(url, stream=True).raw)
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prompt = "USER: <image>\nWhat does the label 15 represent? (1) lava (2) core (3) tunnel (4) ash cloud\nASSISTANT:"
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outputs = pipe(image, prompt=prompt, generate_kwargs={"max_new_tokens": 200})
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print(outputs)
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{'generated_text': 'USER: \nWhat does the label 15 represent? (1) lava (2) core (3) tunnel (4) ash cloud\nASSISTANT: The label 15 represents lava, which is the type of rock that is formed from molten magma. '}
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```
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### Using pure `transformers`:
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Below is an example script to run generation in `float16` precision on a GPU device:
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```python
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import requests
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from PIL import Image
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import torch
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from transformers import AutoProcessor, LlavaForConditionalGeneration
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model_id = "YouLiXiya/tinyllava-v1.0-1.1b-hf"
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prompt = "USER: <image>\nWhat are these?\nASSISTANT:"
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image_file = "http://images.cocodataset.org/val2017/000000039769.jpg"
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model = LlavaForConditionalGeneration.from_pretrained(
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model_id,
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torch_dtype=torch.float16,
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low_cpu_mem_usage=True,
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).to(0)
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processor = AutoProcessor.from_pretrained(model_id)
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raw_image = Image.open(requests.get(image_file, stream=True).raw)
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inputs = processor(prompt, raw_image, return_tensors='pt').to(0, torch.float16)
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output = model.generate(**inputs, max_new_tokens=200, do_sample=False)
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print(processor.decode(output[0][2:], skip_special_tokens=True))
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```
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### Model optimization
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#### 4-bit quantization through `bitsandbytes` library
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First make sure to install `bitsandbytes`, `pip install bitsandbytes` and make sure to have access to a CUDA compatible GPU device. Simply change the snippet above with:
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```diff
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model = LlavaForConditionalGeneration.from_pretrained(
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model_id,
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torch_dtype=torch.float16,
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low_cpu_mem_usage=True,
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+ load_in_4bit=True
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)
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```
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#### Use Flash-Attention 2 to further speed-up generation
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First make sure to install `flash-attn`. Refer to the [original repository of Flash Attention](https://github.com/Dao-AILab/flash-attention) regarding that package installation. Simply change the snippet above with:
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```diff
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model = LlavaForConditionalGeneration.from_pretrained(
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model_id,
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torch_dtype=torch.float16,
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low_cpu_mem_usage=True,
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+ use_flash_attention_2=True
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).to(0)
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```
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## License
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Llama 2 is licensed under the LLAMA 2 Community License,
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Copyright (c) Meta Platforms, Inc. All Rights Reserved. |