Microsoft AI Releases MAI-Cyber-1-Flash: A 5B-Active-Parameter Cyber Model That Pushes MDASH to 95.95% on CyberGym

Short summary

Microsoft AI released MAI-Cyber-1-Flash, a 137B total / 5B active sparse MoE model fine-tuned from MAI-Code-1-Flash specifically for cyber defense. It runs inside MDASH, Microsoft's multi-model agentic scanning harness, handling up to 90% of tasks and achieving 95.95% on the CyberGym benchmark. The model is not available as a standalone endpoint.

• •MAI-Cyber-1-Flash is a 137B/5B-active sparse MoE fine-tune of MAI-Code-1-Flash for cyber defense
• •Runs inside MDASH, Microsoft's agentic scanning harness, handling 90% of tasks
• •Achieves 95.95% on CyberGym benchmark; not shipped as a standalone endpoint

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