RAG Trap: Vector Search Can Find the Answer Yet Fail the LLM

WirelessLife · x · 2026-08-12

Relying solely on vector search in RAG architectures presents hidden risks. If the correct answer ranks 7th and the LLM only reads the top 5 results, the retrieval technically succeeded, but the ranking failed. The author recommends implementing a reranking step before generation to optimize the ordering of retrieved documents.

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