requirements.txt

# Core Framework
gradio==5.49.1

# LangChain
langchain==0.3.0
langchain-community==0.3.0
langchain-huggingface>=0.0.6
huggingface-hub>=0.20.0

# Vector Store & Embeddings
faiss-cpu==1.7.4
sentence-transformers

# BM25 Retriever
rank-bm25==0.2.2