How to build a RAG system from scratch in Python (chunk embed retrieve cite)( https://ai.studybydoing.in)
This story is from 2026-09-18. It is preserved in the archive; the latest stories are on the live feed.
Most "RAG tutorials" hand you a framework and a .from_documents() one-liner, and you never actually see what happens inside. So I built one by hand — chunking, embeddings, a tiny vector store, hybrid retrieval, re-ranking, and cited generation — to understand each moving part. Here's the mental mod…
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- 2026-09-18 03:21 · DEV Community — AI
How to build a RAG system from scratch in Python (chunk embed retrieve cite)( https://ai.studybydoing.in)