The workshop on Retrieval-Augmented Generation (RAG) with Hugging Face & LangChain conducted by Yash Baviskar was a deep dive into building intelligent AI systems that retrieve and generate accurate answers. Building an AI chatbot using vector databases with Hugging Face and LangChain involves leveraging a combination of tools for natural language processing, vector embeddings, and document-based retrieval. This process utilizes Retrieval-Augmented Generation (RAG), which allows your chatbot to retrieve relevant information from a vector database and generate contextually accurate responses.