Free starting points for learning RAG
Several beginner resources were recommended for learning RAG. The main starting point is a YouTube course where a engineer builds RAG from scratch in Python. The official RAG tutorial was also recommended; it covers a RAG agent that calls a search tool only when needed and a RAG chain that always retrieves information once before answering.
For deeper practice, the list points to LangGraph’s tutorial, ’s GitHub example , and older Reddit discussions about setting up RAG. Extra references include the second edition of “ with ” and a 2026 roadmap article.
Key points
- A Python YouTube tutorial builds RAG from scratch.
- The tutorial covers both a RAG agent and a RAG chain.
- LangGraph’s tutorial is suggested for more advanced patterns.
- A GitHub example and older Reddit setup threads are included as references.
- Some listed materials may not be free, including the book recommendation.