CrystalGPT — fine-tuned LLM for crystal structure Q&A

We fine-tuned Llama-3 on ~120k crystal structure descriptions, ICSD entries, and Materials Project documentation. The model can answer questions about space groups, Wyckoff positions, and common synthesis routes. It is far from replacing domain expertise but useful as a quick lookup tool and teaching aid. Weights and eval notebook available on HuggingFace.