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Your RAG chatbot confidently answers questions about docs that don't exist in production. How to fix.

You built a RAG system. It scores 0.91 faithfulness on your eval set. You deploy it. A user asks about a return policy that isn't in your knowledge base. The chatbot answers — confidently, fluently, and completely wrong. This isn't a prompt engineering problem. It's a retrieval architecture bug tha…

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  1. 2026-11-08 15:27 · DEV Community — Machine Learning
    Your RAG chatbot confidently answers questions about docs that don't exist in production. How to fix.

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