What Is a Reranker? The Second-Stage Model That Improves Search Results
A reranker is a second-stage model that evaluates a small candidate set more deeply and reorders it for relevance after a fast initial retrieval. This guide explains the mechanism, trade-offs, evaluation, and controls that matter in practice.
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- 2026-10-18 12:00 · Unite.AI
What Is a Reranker? The Second-Stage Model That Improves Search Results