gradio>=5.0.0 pydantic>=2.0.0 torch transformers accelerate bitsandbytes langchain langchain-community sentence-transformers markdown2 mdtex2html peft huggingface-hub numpy nltk tiktoken openai>=1.0.0 llama-index>=0.10.0 llama-index-llms-openai llama-index-embeddings-openai