SWE-2
Released
2026-09-10
Last refreshed
2026-09-10
Status
Researched 45d ago
ProprietaryCommercial use: restrictedCodingAgentsJSON / Tool useCodingAgents
Cognition releases · 2 in the last 12 months · this family litChangelog →
Specifications
- Family
- SWE-2
- Released
- 2026-09-10
- Parameters
- 2.8T (base: Kimi K3)
- Specialization
- coding
- Openness
- Proprietary
- License
- ProprietaryRestricted
- Weights
- Not released
- Code
- Unknown
- Training
- Reinforcement Learning
Created by
Pricing
No tracked provider pricing is available yet.
Providers(1)
Links
About
SWE-2 is Cognition's proprietary coding model for long-horizon asynchronous software-engineering tasks in Devin, launched September 10, 2026. Post-trained from the Kimi K3 2.8T-parameter base with additional RL at multi-trillion-parameter scale, SWE-2 pushes the cost–performance Pareto frontier and is available through Devin Desktop and CLI at launch, with rollout to Devin Web and Fusion.
Providers(1)
Compare API pricing across 1 tracked provider route for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Route |
|---|---|---|---|
| Devin | Contact sales | Contact sales | Serverless |
Capabilities
ReasoningJSON / Tool useCode Execution
Benchmark peer barsfor Coding
No task-mapped benchmark peers are available for this model yet.
Benchmark scores(1)
Scores are benchmark-specific and are direction-aware: the same numeric gap can mean very different outcomes across suites. Use the leaderboard context and this model's provider route to decide whether the winning margin is meaningful for your workload.
| Benchmark | Score | Version | Evaluation | Source |
|---|---|---|---|---|
| 50.0 | FrontierCode 1.1 MainObserved 2026-10-05 | Configuration: swe-2 (Max) Harness: devin Evaluator: Cognition Confidence: confirmed Notes: Cognition FrontierCode 1.1 Main (100 tasks) mean@5 composite ('new_score'), verified in https://cognition.com/data/frontiercode-leaderboard/data.json (the data file behind https://cognition.com/frontiercode), retrieved 2026-10-05. Agent harness: devin. Highest-scoring published effort selected; timestamp is retrieval date. |
Migration checks
No linked migration route is available for this model yet.