Specialist modelLimited access
MAI-Cyber-1-Flash
Microsoft AI
- Released
- August 13, 2026
- Data date
- October 3, 2026
MAI-Cyber-1-Flash is Microsoft’s specialist model for finding and fixing software vulnerabilities. It is deeply integrated into the MDASH harness and designed for large codebases with many security tasks. No public model endpoint or open weights are documented.
Access remains restricted to MDASH and selected customers. Microsoft reports CyberGym results for the combined MDASH system with MAI-Cyber-1-Flash, GPT-5.4, and additional agents. That combined figure is not an isolated MAI-Cyber benchmark.
Specifications and access
| Specification | Value and source |
|---|---|
| Model class | Specialist model for vulnerability discovery and remediationSource |
| Access | Inside MDASH for selected customers, with no public documented model endpointSource |
| Harness | MDASH combines MAI-Cyber-1-Flash with other models and agentsSource |
| Benchmark note | The published CyberGym figure belongs to the combined MDASH system, not to MAI-Cyber-1-Flash aloneSource |
Sources and data date
Every statement links to its underlying documentation or leaderboard.
| Type | Evidence and data date |
|---|---|
| Research status | Research date October 4, 2026. 1 source URLs checked. This documents the inspected sources, not an exhaustive inventory of every publication. |
| Not found in the inspected sources | isolated-model-benchmark Original wording The published CyberGym result is a multi-agent harness result, not an isolated MAI-Cyber-1-Flash evaluation. |
| Additional source | Microsoft AI MAI-Cyber announcement (retrieved October 3, 2026) · Microsoft AI MAI-Cyber announcement · Editorial description reviewed October 3, 2026 |