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Model: AI4PD/ProtGPT3-1.3B-dpo
Source: Original Platform

.gitattributes

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README.md

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+---
+library_name: transformers
+tags:
+- biology
+- protein-language-model
+- protein-generation
+- causal-lm
+- mixture-of-experts
+- transformers
+- dpo
+- alignment
+- protein-design
+---
+
+# Model Card for ProtGPT3-1.3B-dpo
+
+
+## Model Description
+ProtGPT3-1.3M-dpo is the DPO-aligned version of [ProtGPT3-1.3B](https://huggingface.co/AI4PD/ProtGPT3-1.3B). It is part of the [ProtGPT3 family](https://huggingface.co/collections/AI4PD/protgpt3-family), an open-source suite of promptable and aligned protein language models for protein design.
+
+ProtGPT3-1.3M-dpo was further aligned with Direct Preference Optimization (DPO) to improve generation quality. The alignment procedure shifts the model toward protein sequences with higher predicted structural confidence and reduced low-complexity content, while preserving sequence diversity.
+For protein generation, each model -dpo version is recommended over the base model.
+
+For more info and guidance on how to generate sequences with ProtGPT3-1.3B-dpo check out the extensive description provided in [ProtGPT3-1.3B](https://huggingface.co/AI4PD/ProtGPT3-1.3B), just replacing the model name (i.e., `model_name=AI4PD/ProtGPT3-1.3B-dpo`). 
+
+## Out-of-Scope Use
+
+The model should not be used as the sole basis for experimental, clinical, environmental, or safety-critical decisions. Generated sequences require downstream computational and experimental validation. The model is not guaranteed to generate functional, soluble, safe, synthesizable, or experimentally successful proteins.
+
+The model should not be used for irresponsible or harmful biological design applications.
+
+## Bias, Risks, and Limitations
+
+ProtGPT3-1.3B-dpo learns from public protein sequence datasets and may reproduce biases present in those datasets. Although DPO alignment reduces low-complexity generations and improves generation quality according to the alignment objectives (pLDDT and reduction of lcr, as a binary objective, see main manuscript), generated sequences may still be nonfunctional, unstable, insoluble, repetitive, biologically implausible, or unsuitable for a user’s intended application.
+
+The DPO alignment objective uses predicted structural confidence and low-complexity filtering as proxy objectives. These proxies do not guarantee biological function, experimental success, safety, solubility, or manufacturability.
+
+As with other generative protein models, ProtGPT3-1.3B-dpo may present dual-use risks if applied irresponsibly.
+
+
+## Citation
+
+**BibTeX:**
+
+```bibtex
+@article{protgpt3,
+  title={ProtGPT3: an Open-source family of Promptable and Aligned Protein Language Models},
+  author={Anonymous Authors},
+  year={2026}
+}
+```
+
+## More Information
+
+For more info and guidance on how to generate sequences with ProtGPT3-112M-dpo check out the extensive description provided in [ProtGPT3-1.3B](https://huggingface.co/AI4PD/ProtGPT3-1.3B), just replacing the model name (i.e., `model_name=AI4PD/ProtGPT3-1.3B-dpo`). 
+
+

config.json

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+}

generation_config.json

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