MAI-Code-1-Flash
5B-active-parameter agentic coding model shipped in GitHub Copilot and VS Code; Microsoft calls it Haiku-class at lower cost.
Microsoft's own coder runs inside Copilot instead of third-party models for cost-sensitive agent work; 51% on SWE-Bench Pro per one trade report of the launch.
- Date
- Tuesday, 2 June 2026
- Lab
- Microsoft
- Kind
- model
- Access
- closed API
Figures
| Measure | Value | Measured by |
|---|---|---|
| Active parameters | 5B SWE-Bench Pro 51% per trade report (not in primary text opened) | company |
Part of the seven-model Build 2026 launch (MAI-Thinking-1, Code-1-Flash, Image-2.5 and Flash, Transcribe-1.5, Voice-2; Voice-2-Flash 'coming soon').
Sources
- microsoft.ai/news/building-a-hillclimbing-machine-launching-seven-new-mai-models/
- enterprisedna.co/resources/news/microsoft-build-2026-mai-models-enterprise-ai/
This record was checked against its sources on 6 October 2026. How we check