AI Medical Chatbot — Healthcare Conversational AI with RAG & LLMs

Production-ready AI medical chatbot for healthcare (Aug 2023 – Nov 2023). IBM WatsonX, OpenAI, RAG, Llama 3, Mixtral. Open-source medical consultation assistant using Retrieval Augmented Generation with multiple foundation models (flan-ul2, mt0-xxl, gpt-neox, Llama 3, GPT-4). Features medical interviewer, fine-tuning pipelines, vector stores (Milvus, FAISS, ChromaDB), and Gradio web UIs. Production setup with pytest, type hints, and Makefile.

Tech Stack

Technical Highlights

• Multi-model support: IBM WatsonX (flan-ul2-20b, mt0-xxl-13b, gpt-neox-20b), OpenAI GPT-4/3.5, Meta Llama 3, Mixtral with fine-tuned variants
• RAG-powered answers with vector stores (Milvus, FAISS, ChromaDB) for context-aware medical responses
• Medical interviewer chatbot conducting structured medical interviews with Gradio web interface
• Production-ready codebase with pytest tests, type hints, PEP 8 compliance, Makefile, and optional CI/CD

Challenges & Solutions

• Medical accuracy concerns → Implemented RAG with vector similarity search for context-grounded responses
• Multiple model deployment → Built unified interface supporting WatsonX, OpenAI, and open-source LLMs with seamless switching

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