# Optional overrides BIO_RAG_EMBEDDING_MODEL=dmis-lab/biobert-v1.1 BIO_RAG_GENERATOR_MODEL=BioMistral/BioMistral-7B BIO_RAG_INDEX_PATH=.cache/bio_rag_faiss BIO_RAG_MAX_SAMPLES=2000 BIO_RAG_TOP_K=5 BIO_RAG_CLAIM_SIM_THRESHOLD=0.62