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Your RAG Demo Works Because Someone Picked the Documents

This story is from 2026-08-25. It is preserved in the archive; the latest stories are on the live feed.

A RAG prototype takes an afternoon. Chunk some documents, embed them, stuff the top matches into a prompt, ship a chat box. It works. You demo it, everyone is impressed, the project gets funded. Then you point the same code at the real drive and it starts lying with total confidence. I build AI voi…

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  1. 2026-08-25 21:49 · DEV Community — AI
    Your RAG Demo Works Because Someone Picked the Documents

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