# Cognition — Introducing SWE 1.6: Improving Model UX

- Company: Cognition (cognition.com)
- Announced: 2026-04-07
- Category: model-update
- Coverage: not counted
- Announcement: yes
- Group: models
- Source: https://cognition.com/blog/swe-1-6
- Record: https://forck.live/items/7673-introducing-swe-1-6-improving-model-ux
- Subject: Devin / SWE
- Models affected: SWE-1.6
- Pricing: free tier for the next 3 months

Cognition released SWE-1.6, a new model for software engineering agents, optimized for intelligence and model UX. It is available in Windsurf with a free tier for the next 3 months and offers speeds up to 950 tok/s for paying users. The model improves on behavioral issues like overthinking and looping compared to the preview version.

## Evidence

Verbatim from https://cognition.com/blog/swe-1-6:

> We’re releasing SWE-1.6, our latest model built for software engineering agents, and we’re making it generally available in Windsurf. SWE-1.6 is optimized for both intelligence and model UX. Moreover, it is industry-leading in both speed (up to 950 tok/s) and cost (free tier for the next 3 months).

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