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Model: McClain/PlasmidGPT-RL Source: Original Platform
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README.md
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README.md
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---
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base_model: UCL-CSSB/PlasmidGPT-SFT
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library_name: transformers
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model_name: PlasmidGPT-RL
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tags:
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- generated_from_trainer
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- grpo
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- trl
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- plasmid
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- biology
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- dna
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license: mit
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---
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# PlasmidGPT-RL
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This model is a fine-tuned version of [UCL-CSSB/PlasmidGPT-SFT](https://huggingface.co/UCL-CSSB/PlasmidGPT-SFT) using Group Relative Policy Optimization (GRPO).
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## Model Description
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PlasmidGPT-RL is trained to generate functional plasmid DNA sequences. It was fine-tuned using reinforcement learning with a reward model that evaluates:
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- Presence of valid origins of replication (OriV)
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- Presence of antibiotic resistance genes (ARGs)
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- Absence of problematic repeat sequences
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## Training
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This model was trained with GRPO using the [TRL library](https://github.com/huggingface/trl).
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**Training run**: [Weights & Biases](https://wandb.ai/ucl-cssb/PlasmidRL/runs/4e783zua)
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### Training Details
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- **Base model**: UCL-CSSB/PlasmidGPT-SFT
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- **Method**: GRPO (Group Relative Policy Optimization)
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- **Checkpoint**: 800 steps
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## Usage
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```python
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from transformers import AutoTokenizer, AutoModelForCausalLM
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tokenizer = AutoTokenizer.from_pretrained("McClain/PlasmidGPT-RL")
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model = AutoModelForCausalLM.from_pretrained("McClain/PlasmidGPT-RL")
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# Generate a plasmid sequence
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prompt = "ATG"
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inputs = tokenizer(prompt, return_tensors="pt")
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outputs = model.generate(
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inputs.input_ids,
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max_new_tokens=256,
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do_sample=True,
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temperature=0.95,
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top_p=0.9
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)
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sequence = tokenizer.decode(outputs[0], skip_special_tokens=True)
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print(sequence)
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```
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## Framework Versions
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- TRL: 0.23.1
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- Transformers: 4.57.0
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- PyTorch: 2.8.0
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## Citation
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If you use this model, please cite the GRPO paper:
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```bibtex
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@article{shao2024deepseekmath,
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title={{DeepSeekMath: Pushing the Limits of Mathematical Reasoning in Open Language Models}},
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author={Zhihong Shao and Peiyi Wang and Qihao Zhu and Runxin Xu and Junxiao Song and Mingchuan Zhang and Y. K. Li and Y. Wu and Daya Guo},
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year={2024},
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eprint={arXiv:2402.03300},
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}
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```
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config.json
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config.json
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{
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"activation_function": "gelu_new",
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"architectures": [
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"GPT2LMHeadModel"
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],
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"attn_pdrop": 0.1,
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"bos_token_id": 30000,
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"dtype": "float32",
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"embd_pdrop": 0.1,
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"initializer_range": 0.02,
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"layer_norm_epsilon": 1e-05,
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"model_type": "gpt2",
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"n_ctx": 2048,
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"summary_proj_to_labels": true,
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}
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generation_config.json
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special_tokens_map.json
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tokenizer.json
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