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Model: DireDreadlord/GemCod-Sapphire-270M-XM Source: Original Platform
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README.md
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README.md
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---
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license: gemma
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datasets:
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- nphearum/Code-Reasoning-4k
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language:
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- en
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base_model:
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- google/gemma-3-270m-it
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pipeline_tag: text-generation
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tags:
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- text-generation-inference
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- code
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- gemma
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- SLM
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---
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# GemCod270M - Sapphire - XM (gemma-270m-it-code-reasoning v1.1.0 experimental)
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GemCod is a lightweight code generation model finetuned using SFT on the base gemma-270m-it model(https://huggingface.co/google/gemma-3-270m-it). It offers accurate and quick(ish) code snippet and long-form code generation in all major programming languages.
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It's small size (270M parameters) allows it to run comfortably on laptop grade GPUs.
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The Sapphire model represents the next generation of GemCod agents by integrating COT(Chain Of Thought) reasoning capabilities into the standard coding architecture. This almost completely removes the chances of hallucination and allows the model to give highly detailed and specialized explanations and instructions along with its generations.
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It serves as an upgrade from the previous GemCod-Jade-270M model found here (https://huggingface.co/DireDreadlord/GemCod-Jade-270M) whilst only having minor bloat to inference time and space requirements.
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This model also offers rudimentary Q/A and subject matter expert capabilities on code related subjects.
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**This is the XM(Experimental) variant of the model which is trained on only 2,000 steps on SFT; it may give slightly incorrect outputs on long-form generation.**
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---
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**Estimated parameters:** ~270M
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**Architecture:** Gemma3
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**Intended use:** Code snippet and long-form generations from natural language, instruction generation and COT explanations on code snippets
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---
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## Training data
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- Source: code-reasoning-4k dataset (https://huggingface.co/datasets/nphearum/Code-Reasoning-4k)
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- Rows: ~40,000 rows templated with a custom .jinja chat format
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- Training: trained for 2,000 steps on an RTX 3050 (4GB VRAM)
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## Usage
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Install requirements:
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```bash
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pip install -r requirements.txt
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pip install transformers datasets accelerate safetensors
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```
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## Usage (Hugging Face Hub)
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You can load it directly from HuggingFace:
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```python
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from transformers import AutoTokenizer, AutoModelForCausalLM
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tokenizer = AutoTokenizer.from_pretrained("DireDreadlord/GemCod-Sapphire-270M-XM")
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model = AutoModelForCausalLM.from_pretrained("DireDreadlord/GemCod-Sapphire-270M-XM")
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model.to(device)
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model.eval()
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model.resize_token_embeddings(len(tokenizer))
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user_prompt = (
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"write a bubble sort algorithm in cpp."
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"Please think step by step and show your chain-of-thought before the final code." #<-- comment out this line to disable COT
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)
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messages = [{"role": "user", "content": user_prompt}]
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inputs = tokenizer.apply_chat_template(messages, add_generation_prompt=True, return_tensors="pt")
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inputs = {k: v.to(device) for k, v in inputs.items()}
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with torch.no_grad():
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outputs = model.generate(
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**inputs,
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max_new_tokens=1024,
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do_sample=False,
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num_beams=1,
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pad_token_id=tokenizer.eos_token_id,
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eos_token_id=tokenizer.eos_token_id,
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use_cache=False,
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)
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prompt_len = inputs["input_ids"].shape[1]
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generated_ids = outputs[0, prompt_len:]
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print(tokenizer.decode(generated_ids.tolist(), skip_special_tokens=True))
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```
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**For optimal long-form generation along with COT, set `max_new_tokens=2048`**
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## Limitations
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- Model for experimental use only; users should employ it as such under license.
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chat_template.jinja
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chat_template.jinja
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{{ bos_token }}
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{%- if messages[0]['role'] == 'system' -%}
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{%- if messages[0]['content'] is string -%}
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{%- set first_user_prefix = messages[0]['content'] + '
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' -%}
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{%- else -%}
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{%- set first_user_prefix = messages[0]['content'][0]['text'] + '
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' -%}
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{%- endif -%}
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{%- set loop_messages = messages[1:] -%}
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{%- else -%}
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{%- set first_user_prefix = "" -%}
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{%- set loop_messages = messages -%}
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{%- endif -%}
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{%- for message in loop_messages -%}
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{%- if (message['role'] == 'user') != (loop.index0 % 2 == 0) -%}
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{{ raise_exception("Conversation roles must alternate user/assistant/user/assistant/...") }}
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{%- endif -%}
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{%- if (message['role'] == 'assistant') -%}
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{%- set role = "model" -%}
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{%- else -%}
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{%- set role = message['role'] -%}
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{%- endif -%}
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{{ '<start_of_turn>' + role + '
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' + (first_user_prefix if loop.first else "") }}
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{%- if message['content'] is string -%}
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{{ message['content'] | trim }}
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{%- elif message['content'] is iterable -%}
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{%- for item in message['content'] -%}
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{%- if item['type'] == 'image' -%}
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{{ '<start_of_image>' }}
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{%- elif item['type'] == 'text' -%}
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{{ item['text'] | trim }}
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{%- endif -%}
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{%- endfor -%}
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{%- else -%}
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{{ raise_exception("Invalid content type") }}
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{%- endif -%}
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{{ '<end_of_turn>
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' }}
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{%- endfor -%}
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{%- if add_generation_prompt -%}
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{{'<start_of_turn>model
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'}}
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{%- endif -%}
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62
config.json
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config.json
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{
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"_sliding_window_pattern": 6,
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"architectures": [
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"Gemma3ForCausalLM"
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],
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"attention_bias": false,
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"attention_dropout": 0.0,
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"attn_logit_softcapping": null,
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"bos_token_id": 2,
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"dtype": "bfloat16",
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"eos_token_id": 1,
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"final_logit_softcapping": null,
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"head_dim": 256,
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"hidden_activation": "gelu_pytorch_tanh",
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"hidden_size": 640,
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"initializer_range": 0.02,
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"intermediate_size": 2048,
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"layer_types": [
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"sliding_attention",
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"sliding_attention",
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"sliding_attention",
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"sliding_attention",
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"sliding_attention",
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"full_attention",
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"sliding_attention",
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"sliding_attention",
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"sliding_attention",
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"sliding_attention",
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"sliding_attention",
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"full_attention",
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"sliding_attention",
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"sliding_attention",
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"sliding_attention",
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"sliding_attention",
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"sliding_attention",
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"full_attention"
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],
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"max_position_embeddings": 32768,
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"model_type": "gemma3_text",
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"num_attention_heads": 4,
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"num_hidden_layers": 18,
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"num_key_value_heads": 1,
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"pad_token_id": 0,
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"query_pre_attn_scalar": 256,
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"rms_norm_eps": 1e-06,
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"rope_parameters": {
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"full_attention": {
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"rope_theta": 1000000.0,
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"rope_type": "default"
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},
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"sliding_attention": {
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"rope_theta": 10000.0,
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"rope_type": "default"
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}
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},
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"sliding_window": 512,
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"tie_word_embeddings": true,
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"transformers_version": "5.9.0",
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"use_bidirectional_attention": false,
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"use_cache": false,
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"vocab_size": 262145
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}
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3
gemcod_logo_c.png
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gemcod_logo_c.png
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version https://git-lfs.github.com/spec/v1
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size 2675237
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generation_config.json
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generation_config.json
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{
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"bos_token_id": 2,
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"cache_implementation": "hybrid",
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"do_sample": true,
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"eos_token_id": [
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"pad_token_id": 0,
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"top_k": 64,
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"top_p": 0.95,
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"transformers_version": "5.9.0"
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}
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model.safetensors
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model.safetensors
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version https://git-lfs.github.com/spec/v1
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oid sha256:ad8a061ac9de164890249b5de7e7ab62b37eae0e2be6591f8d3c931d5b154dc9
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size 536224336
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requirements.txt
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requirements.txt
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torch
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numpy
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tiktoken
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datasets
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transformers
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peft
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bitsandbytes
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tqdm
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matplotlib
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safetensors
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huggingface_hub
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accelerate
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trl
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tokenizer.json
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tokenizer.json
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version https://git-lfs.github.com/spec/v1
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oid sha256:daab2354f8a74e70d70b4d1f804939b68a8c9624dd06cb7858e52dd8970e9726
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size 33384567
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tokenizer_config.json
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tokenizer_config.json
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{
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"backend": "tokenizers",
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"boi_token": "<start_of_image>",
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"bos_token": "<bos>",
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"clean_up_tokenization_spaces": false,
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"eoi_token": "<end_of_image>",
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"eos_token": "<eos>",
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"image_token": "<image_soft_token>",
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"is_local": false,
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"local_files_only": false,
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"mask_token": "<mask>",
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"model_max_length": 1000000000000000019884624838656,
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"model_specific_special_tokens": {
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"boi_token": "<start_of_image>",
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"eoi_token": "<end_of_image>",
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"image_token": "<image_soft_token>"
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},
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"pad_token": "<pad>",
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"padding_side": "left",
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"sp_model_kwargs": null,
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"spaces_between_special_tokens": false,
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"tokenizer_class": "GemmaTokenizer",
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"unk_token": "<unk>",
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"use_default_system_prompt": false
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}
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3
training_args.bin
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training_args.bin
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version https://git-lfs.github.com/spec/v1
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size 5304
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