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Cognition
Devin
Released Dec 10, 2024
Cognition's autonomous cloud software engineer that takes tickets from Slack, Linear or the web app and works in its own environment to produce pull requests.
- Domain
- Coding
- Access
- Generally available
- Plan
- Pro $20/mo
Strengths & weaknesses
Strengths
- Ultra mode pairs Claude Fable 5.1 and GPT-6 Astra
- Integrations with Slack, Linear and MCP
- Pro tier from $20/mo
Weaknesses
- Quota-limited; Max needed for no daily cap
- Sleeping sessions now resumable for 14 days (down from 30)
Not notable: non-frontier developer; no official-leaderboard top-3 placement confirmed. GA 2024-12-10 (announced March 2024). Models per 2026-09-23 release notes: Ultra = Fable 5.1 + GPT-6 Astra; Normal lists Fable 5.1, Opus 5, GPT-6 Astra. Cognition's own SWE-2 is in research preview in the agent selector (not in models.json). Devin Desktop (ex-Windsurf, 2026-06-02) is an IDE where users pick models — harness, not covered here.