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SWE-2

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Cognition's software-engineering model for Devin, post-trained from the open-weights Kimi K3

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About SWE-2

SWE-2 is a software-engineering model from Cognition, released on 10 September 2026. It is available in Devin Desktop and the Devin CLI from launch, with Devin Web and Fusion to follow. It is offered inside Devin and was not announced as a standalone API.

Main features

  • Coding agent model: built to power Cognition's Devin tools for software tasks.
  • Reinforcement-learning training: post-trained from Moonshot AI's open-weights Kimi K3, extending the training approach used for the earlier SWE-1.7.
  • Cost-aware objective: training rewards success while also counting inference spend and time per attempt.
  • Three effort levels: medium, high and max, trained together in one run.

Key facts

  • Released: 10 September 2026
  • Maker: Cognition
  • Base model: Kimi K3 from Moonshot AI
  • Reported results: Cognition cites figures on FrontierCode, DeepSWE and Terminal-Bench, including a lower result on Terminal-Bench 4 than two rival models; all are vendor figures taken at whichever effort setting scored highest
  • Not stated: context window and licence

Profile written by TrustList from the business's own published information, Oct 2026.

Benchmarks & AI stats

AI model rankings
BenchmarkOfficialCommunity avg
DeepSWEcode73 %-
FrontierCode 1.1 Maincode50 %-
Terminal Bench 2.1agent92.8 %-
Terminal-Bench 4.0agent27.3 %-

“Official” values are editor-approved and feed the ranking. “Community avg” is the mean of member submissions (shown for transparency; it never affects the ranking until an editor approves a value).

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Trust Score

4/ 100
Trust Score: New

An earned signal from verification, reviews, awards, transparency and engagement - the vendor can't buy it.

Verification
0/100 · 20%
Reviews
0/100 · 30%
Awards
0/100 · 15%
Transparency
18/100 · 20%
Engagement
0/100 · 15%
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Updated 9/16/2026

What the business tells TrustList

Founded
2026 (0 years) evidence sent

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