Microsoft Says New Cybersecurity AI Model Helps MDASH Hit 95.95% at Half the Cost

Microsoft AI released MAI-Cyber-1-Flash, its first model specifically for cyber defense. This 137B total, 5B active sparse MoE fine-tune of MAI-Code-1-Flash features a 256k context window. Operating within the MDASH multi-model agentic scanning harness alongside GPT-5.4, it handles up to 90% of tasks. This configuration achieved a 95.95% score on CyberGym while reducing costs by 50% compared to previous MDASH combinations involving GPT-5.4, GPT-5.4 mini, and GPT-5.3 Codex. Access remains limited to approved users.