Cohere’s Rerank 5 can return the useful passages inside a document
Rerank 5 adds an optional Context Focus mode that returns scored character spans, letting an application send selected evidence to its language model.
Cohere released Rerank 5 Pro and Fast on October 21.
Its optional Context Focus feature identifies relevant passages inside each result and returns their character offsets and scores. It is off by default. Because reranking operates on raw text at query time, switching the reranker does not require rebuilding the corpus’s embeddings. [1]
The practical opportunity is to reduce the material sent to a downstream model while keeping a traceable connection to the original document. Test both answer correctness and whether the selected spans preserve qualifications or exceptions: a shorter context is useful only if the evidence survives the cut. Cohere’s claims about ranking quality and calibrated scores still need testing on the intended corpus. [1]
Take it further
Inspect the Context Focus request and returned span offsets For retrieval developers. Feature is optional and off by default; evaluate answer quality and preservation of exceptions on your corpus.
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- Cohere · Rerank 5 release and Context Focus
October21 release; optional span offsets, score fields and migration behavior inspected. Vendor quality claims not independently reproduced.
Images & figures
Context Focus returns passages with their original character offsets. The selected spans should retain the exceptions that determine the answer.
Euangelion · Source · Usage terms