requirements.txt

# Core dependencies
transformers>=4.51.3
torch>=2.3.0
numpy>=2.2.2
scipy>=1.13.0
streamlit>=1.36.0

# LangChain ecosystem
langchain>=0.2.11
langchain-core>=0.2.4
langchain-community>=0.3.14
langchain-openai==0.2.14
langchain-qdrant>=0.2.0
langgraph==0.2.61
langchain-huggingface>=0.0.5
langchain-cohere>=0.1.0

# Retrieval and ranking
rank_bm25>=0.2.2

# Hugging Face
huggingface-hub>=0.23.2

# Utilities
python-dotenv>=1.0.1
arxiv>=1.4.0
tiktoken>=0.7.0
unstructured>=0.14.8