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Mini toolsSWE 1.5
By Cognition AI
SWE-1.5 is described as a frontier-size model optimized as part of a full agent stack (model, inference, and harness), developed with end-to-end RL on real task environments and served at high speed via a Cerebras partnership, with availability through Windsurf.
New
Multimodal
Gen 3
Overview
SWE-1.5 is Cognition’s fast software-engineering agent model designed for strong coding performance with very high token throughput.
About Cognition AI
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Last updated: February 27, 2026
