Why Your RAG Chatbot Still Hallucinates: 5 Design Mistakes (and How to Fix Them)
This story is from 2026-10-12. It is preserved in the archive; the latest stories are on the live feed.
You built a RAG chatbot. The documents are indexed, the vector database is humming, and the demo went well. Then a user asks about the refund policy, and the bot confidently quotes a rule that was retired last year. RAG is supposed to reduce hallucinations. It does, but only when retrieval is good.…
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- 2026-10-12 12:10 · DEV Community — AI
Why Your RAG Chatbot Still Hallucinates: 5 Design Mistakes (and How to Fix Them)