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README.md
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# Gemma 3 27B GRPO Reasoning Model
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## Model Description
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- **Developed by:** klei1
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- **Model type:** Gemma 3 27B fine-tuned with GRPO for reasoning tasks
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- **License:** apache-2.0
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- **Finetuned from model:**
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- **Framework:** Hugging Face Transformers
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This model is a fine-tuned version of Google's Gemma 3 27B instruction-tuned model, enhanced using Generative Rejection Policy Optimization (GRPO) to improve its reasoning capabilities. The training was completed 1.6x faster with [Unsloth](https://github.com/unslothai/unsloth) optimization, requiring 60% less VRAM and enabling 6x longer context than environments with Flash Attention 2.
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## Capabilities & Training
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- Final solutions are provided between `<SOLUTION>` and `</SOLUTION>` tags
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### Training Configuration
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- **Framework:**
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- **Optimization:** LoRA fine-tuning (r=8, alpha=8)
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- **Precision:** 4-bit dynamic quantization for superior accuracy with minimal VRAM usage
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- **Reward Functions:** Format adherence, answer accuracy, and reasoning quality
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- **Context Length:** Up to 128K tokens supported by base model
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## Technical Specifications
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### Gemma 3 Architecture Benefits
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- 27B parameters, trained on 14 trillion tokens
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- 128K context window (extended from 32K)
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- 5 sliding + 1 global attention pattern
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- 1024 sliding window attention
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- 1.6x faster training compared to standard implementations
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- >60% VRAM reduction, enabling training on consumer GPUs
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- Support for 6x longer context than environments with Flash Attention 2
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- Fixes for float16 mixed precision issues that cause infinity in activations and gradients
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### Example System Prompt
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```
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You are given a problem.
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Think about the problem and provide your working out.
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Then, provide your solution between <SOLUTION></SOLUTION>
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```
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### Example Usage
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```python
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from transformers import AutoModelForCausalLM, AutoTokenizer
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import torch
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model_name = "klei1/gemma-3-27b-grpo" # Replace with your model path
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model = AutoModelForCausalLM.from_pretrained(model_name, device_map="auto", torch_dtype=torch.float16)
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tokenizer = AutoTokenizer.from_pretrained(model_name)
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system_prompt = """You are given a problem.
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Think about the problem and provide your working out.
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Place it between <start_working_out> and <end_working_out>.
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Then, provide your solution between <SOLUTION></SOLUTION>"""
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messages = [
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{"role": "system", "content": system_prompt},
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{"role": "user", "content": "If a train travels at 60 miles per hour, how far will it travel in 2.5 hours?"}
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]
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text = tokenizer.apply_chat_template(
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messages,
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add_generation_prompt=True,
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tokenize=False
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)
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inputs = tokenizer(text, return_tensors="pt").to(model.device)
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outputs = model.generate(
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**inputs,
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max_new_tokens=512,
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temperature=0.7,
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top_p=0.95,
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top_k=64
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)
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print(tokenizer.decode(outputs[0], skip_special_tokens=False))
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```
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## Limitations
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- While this model excels at reasoning tasks, particularly mathematical problems, it may still occasionally provide incorrect solutions for complex problems.
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- The model's performance might vary depending on problem complexity and wording.
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## Acknowledgments
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- Google for developing the Gemma 3 model family
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- Unsloth team for providing optimization techniques that make fine-tuning large models more accessible
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- Hugging Face for their TRL library and GRPO implementation
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## Citation
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---
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base_model: gemma-3-27b-it
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tags:
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- text-generation-inference
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- transformers
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- gemma3
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- reasoning
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- mathematics
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- grpo
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license: apache-2.0
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language:
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- en
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inference:
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parameters:
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temperature: 0.7
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top_p: 0.95
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top_k: 64
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max_new_tokens: 512
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---
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# Gemma 3 27B GRPO Reasoning Model
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## Model Description
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- **Developed by:** klei1
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- **Model type:** Gemma 3 27B fine-tuned with GRPO for reasoning tasks
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- **License:** apache-2.0
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- **Finetuned from model:** Google's Gemma 3 27B instruction-tuned model
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- **Framework:** Hugging Face Transformers
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This model is a fine-tuned version of Google's Gemma 3 27B instruction-tuned model, enhanced using Generative Rejection Policy Optimization (GRPO) to improve its reasoning capabilities.
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## Capabilities & Training
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- Final solutions are provided between `<SOLUTION>` and `</SOLUTION>` tags
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### Training Configuration
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- **Framework:** Hugging Face's TRL library
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- **Optimization:** LoRA fine-tuning (r=8, alpha=8)
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- **Reward Functions:** Format adherence, answer accuracy, and reasoning quality
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## Technical Specifications
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### Available Formats
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This model is available in two formats:
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- Standard adapter format (adapter_model.safetensors)
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- GGUF 8-bit quantized format (bleta-meditor-27b-finetune.Q8_0.gguf) for use with llama.cpp
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### Gemma 3 Architecture Benefits
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- 27B parameters, trained on 14 trillion tokens
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- 128K context window (extended from 32K)
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- 5 sliding + 1 global attention pattern
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- 1024 sliding window attention
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## System Prompt
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To get the best results from this model, use this system prompt:
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```
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You are given a problem.
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Think about the problem and provide your working out.
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Then, provide your solution between <SOLUTION></SOLUTION>
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```
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## Limitations
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- While this model excels at reasoning tasks, particularly mathematical problems, it may still occasionally provide incorrect solutions for complex problems.
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- The model's performance might vary depending on problem complexity and wording.
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## Acknowledgments
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- Google for developing the Gemma 3 model family
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- Hugging Face for their TRL library and GRPO implementation
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## Citation
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