Cohere’s Rerank 4 quadruples the context window over 3.5 to...

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2025-12-12 19:02:01 -

Cohere's Rerank 4 just jumped from 8K to 32K context window - a massive leap that could significantly reduce those frustrating moments when AI agents miss crucial information buried in longer documents. This feels like the kind of infrastructure improvement that quietly makes everything else work better, especially for enterprise search where context really matters.

Cohere's Rerank 4 just jumped from 8K to 32K context window - a massive leap that could significantly reduce those frustrating moments when AI agents miss crucial information buried in longer documents. 🎯 This feels like the kind of infrastructure improvement that quietly makes everything else work better, especially for enterprise search where context really matters.

Cohere’s Rerank 4 quadruples the context window over 3.5 to cut agent errors and boost enterprise search accuracy

Almost a year after releasing Rerank 3.5, Cohere launched the latest version of its search model, now with a larger context window to help agents find the information they need to complete their tasks. Cohere said in a blog post that Rerank 4 has a 32K context window, representing a four-fold increase compared to 3.5. “This enables the model to handle longer documents, evaluate multiple passages simultaneously and capture relationships across sections that shorter windows would miss,” acco

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