Rerank Retrieval Results Using Conversation History

bigaiguy · x · 2026-07-11

This introduces Context-Aware Reranking: retrieval merely fetches candidates, while reranking determines what actually enters the context.

Instead of the common practice of stuffing the top-10 results into the model, this approach uses a lightweight reranker to score chunks based on the entire conversation history, rather than just the current query. Chunks that conflict with the existing context are down-weighted, while those that align with the ongoing context are up-weighted. The post mentions that this method significantly improved both token usage and answer quality.

Related event: Advanced RAG Guide: Eight Engineering Techniques to Fix Context Contamination(20 posts)→

Original post →

More from coding & agent

coding & agent channel →