The Real Reason RAG Fails
thisguyknowsai · x · 2026-07-11
The author points out that the real problem with RAG is not failure to retrieve, but context pollution: although the correct documents are retrieved, the way they are stuffed into the prompt actually confuses the model more.
The post also mentions that this issue was allegedly studied by a Brazilian self-taught developer over 14 months, resulting in an open-source library summarizing 8 techniques; these techniques are said to correct many common RAG tutorial mistakes.
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