Cohere

Cohere's Rerank Multilingual 3.0 scores how relevant each document is to a query, for non-English and mixed-language search. Use it as a second stage after vector or keyword search.

Cohere's Rerank 3.5 scores how relevant each document is to a query. It handles 100+ languages and long, semi-structured documents (emails, tables, JSON, code). Use it as a second stage after vector or keyword search to put the best passages first.

Cohere's Rerank 4.0 Fast is the low-latency Rerank 4 variant. It scores how relevant each document is to a query across 100+ languages. Use it as a second stage after vector or keyword search when latency matters more than the last bit of quality.

Cohere's Rerank 4.0 Pro is the highest-quality Cohere reranker. It scores how relevant each document is to a query across 100+ languages, with a longer context per document than Rerank 3.5. Use it as a second stage after vector or keyword search when ranking quality matters most.