Context management

Cohere Rerank

Retrieval-optimization model API that reranks agent-retrieved documents before they reach the LLM

Commercial

What it is

Our note

Reranking is the cheapest known lever on agent context quality, and Cohere bills it per search unit, defined on its pricing page as one query plus up to 100 documents, with long-document chunks counted separately. Distinct from the Cohere North 2 agent-memory product already in the registry: this entry is the retrieval layer.

At a glance

Vendor
Cohere
Business model
Commercial
Self-hosting
No, hosted only
Access
REST /v2/rerank endpoint; rerank-v4.0-pro and rerank-v4.0-fast; private/VPC deployment options

Facts verified nov 10, 2026; added nov 10, 2026. Vendor facts come from the vendor’s own pages; benchmark claims are self-reported unless we say otherwise.

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