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Build a RAG Chatbot That Admits When It Doesn't Know (Pure Python, No Dependencies)

This story is from 2026-10-26. It is preserved in the archive; the latest stories are on the live feed.

The problem: chatbots that guess Every team wants a chatbot that answers questions from their own documents — support FAQs, internal policies, product manuals. The naive approach is to paste documents into a prompt or fine-tune a model, and the failure mode is always the same: when the documents do…

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  1. 2026-10-26 14:21 · DEV Community — AI
    Build a RAG Chatbot That Admits When It Doesn't Know (Pure Python, No Dependencies)

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