Devin gets a new in-house coding model, SWE-2

Your move: Free on the $20/mo Devin Pro plan through October 15, 2026

Cognition released SWE-2 on September 10, 2026, a new coding model built by fine-tuning Moonshot AI's Kimi K3 model specifically for software engineering work. It's available now in Devin Desktop and Devin CLI, with Devin Web and Fusion rolling out. Cognition says SWE-2 scores close to GPT-6 Astra and Claude Fable 5.1 on its FrontierCode benchmark, at up to 70% lower cost. Usage is included free on the $20-a-month Devin Pro plan through October 15, 2026, after which standard per-token pricing applies.

Why it matters

This gives Devin users another model option alongside GPT-6 Astra and Fable, one aimed at cutting cost rather than pushing top scores. Worth trying on routine coding sessions to see if it holds up for your work before the free window ends on October 15.

Source: Cognition blog ↗

Published by Agent Log. The summary reports the linked source; “Why it matters” and the verdict are Agent Log's interpretation.

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