requirements.txt

# Core LangChain
langchain>=0.2.0,<0.3.0
langchain-community>=0.2.0,<0.3.0
langchain-core>=0.2.0,<0.3.0
langchain-text-splitters>=0.2.0,<0.3.0
langchain-groq>=0.1.0
langchain-huggingface>=0.0.3

# Vector DB
chromadb>=0.4.0
faiss-cpu>=1.7.4

# Embeddings — pinned for meta-tensor safety on Python 3.11 / CPU
sentence-transformers==2.7.0
transformers==4.40.2
torch==2.2.2
tokenizers>=0.19.0,<0.20.0
huggingface-hub>=0.23.0,<0.24.0
accelerate>=0.29.0

# Data processing
unstructured>=0.10.0
pypdf>=3.0.0

# Database (memory)
pymongo>=4.0.0
motor>=3.0.0

# UI
streamlit>=1.32.0

# Math
sympy>=1.12
numpy>=1.24.0,<2.0.0
matplotlib>=3.7.0
scipy>=1.11.0

# Utilities
python-dotenv>=1.0.0
requests>=2.31.0
beautifulsoup4>=4.12.0
pillow>=10.0.0
pytesseract>=0.3.10
plotly>=5.0.0