The Retrieval Pipeline Is Lying to You: How RAG Fails Before the LLM Sees Anything
This story is from 2026-09-09. It is preserved in the archive; the latest stories are on the live feed.
Your RAG system did not fail because the model hallucinated. It failed because the only “facts” the model saw were a mangled PDF table, an outdated policy, a chunk with missing context, and three near-duplicate paragraphs that pushed better evidence out of the top-k results. The LLM was downstream…
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- 2026-09-09 17:21 · DEV Community — AI
The Retrieval Pipeline Is Lying to You: How RAG Fails Before the LLM Sees Anything