openai langchain>=0.1.0 langchain-community>=0.0.21 langchain-openai>=0.0.6 langchain-text-splitters>=0.0.1 langchain-chroma>=0.0.4 chromadb>=0.4.22 pypdf python-docx>=1.1.0 gradio>=4.14.0 numpy==1.26.4 pandas==2.2.2