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RAG Can Retrieve the Right Document and Still Hide the Answer

This story is from 2026-10-19. It is preserved in the archive; the latest stories are on the live feed.

A document ID can pass a retrieval check while the text sent to the model omits the answer. That leaves a gap between two questions that often get merged during RAG debugging: Did the system find the relevant source? Did the model actually receive the relevant part of that source? Here is a small,…

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  1. 2026-10-19 04:41 · DEV Community — AI
    RAG Can Retrieve the Right Document and Still Hide the Answer

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