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MAI-Code-1-Flash

MicrosoftProprietaryPending Human Review

MAI-Code-1-Flash is Microsoft AI’s small active-parameter coding model, deployed in GitHub Copilot for everyday developer work. It was trained together with the production Copilot harness to handle repository questions, refactoring, multi-turn code changes, and adaptive reasoning. Microsoft reports five billion active parameters but has not disclosed the full architecture or total size. The model remains proprietary; access in a developer product is distinct from downloadable weights or a generally available independent API.

2026-06-02
5B active; total undisclosed
Undisclosed
Proprietary

Specifications

Parameters
5B active; total undisclosed
Architecture
Undisclosed
License
Proprietary
Type
text
Modalities
text

Benchmark Scores

Advanced Specifications

Model Family
MAI Code
API Access
Not Available
Chat Interface
Available

Capabilities & Limitations

Capabilities
agentic codingadaptive reasoningrepository understanding
Known Limitations
Optimized for Copilot harnessClosed weights
Notable Use Cases
GitHub Copilot assistancecode refactoringdeveloper automation
Tool Use Support
Yes

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