Answer · Coding
What AI models does Devin use?
Devin runs on Claude (Anthropic), Devin (Cognition), Devin proprietary models (Cognition), Fable 5.1 (Cognition), GPT 5.2 Mini (OpenAI), GPT-6 Astra (OpenAI), Haiku (Anthropic), In-house models (Cognition), Kimi K2.5 (Moonshot AI), Opus 5 (Anthropic), SWE 1.7 (Cognition), SWE-2 (Cognition) and Ultra (Cognition), and routes requests between them.
- Models used
- 13
- Primary model
- Claude
- Public API
- Yes
- Last checked
- 2026-11-07
Model claims are labelled by how we know them: Claude — disclosed, Devin — unknown, Devin proprietary models — unknown, Fable 5.1 — disclosed, GPT 5.2 Mini — disclosed, GPT-6 Astra — disclosed, Haiku — disclosed, In-house models — inferred, Kimi K2.5 — disclosed, Opus 5 — disclosed, SWE 1.7 — disclosed, SWE-2 — disclosed and Ultra — inferred. "Disclosed" means the vendor says so in public; "inferred" means it was derived from documentation, headers or release notes.
Context window: Model-dependent.
Other stack signals: Mintlify, Slack, Microsoft Teams, GitHub, GitLab, Bitbucket, Linear and Jira.
Cite this answer
Tomorrow. “What AI models does Devin use?” Tomorrow AI & Emerging Tech Index, AlienSquad, updated 2026-11-07. https://tomorrow.aliensquad.ai/q/what-models-does-devin-use
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