Microsoft Says Its New Cybersecurity AI Beats Industry Leaders at Half the Cost
Microsoft has a new AI cybersecurity model called MAI-Cyber-1-Flash, and when it’s combined with agentic security system MDASH and OpenAI’s GPT-5.4 model,...
Key points
- Microsoft has a new AI cybersecurity model called MAI-Cyber-1-Flash, and when it’s combined with agentic security system MDASH and OpenAI’s GPT-5.4 model, it outscores Anthropic’s Claude Mythos 5 by 12 points on a key benchmark.
- The security product is designed for “using AI to defend against AI,” Microsoft says.
- It will slowly roll out to all Microsoft Security products.
- According to benchmarks posted by Microsoft on Monday, the combination scored 96% on CyberGym, compared with Mythos 5 at 84%.
What happened
Microsoft has a new AI cybersecurity model called MAI-Cyber-1-Flash, and when it’s combined with agentic security system MDASH and OpenAI’s GPT-5.4 model, it outscores Anthropic’s Claude Mythos 5 by 12 points on a key benchmark. The security product is designed for “using AI to defend against AI,” Microsoft says. It will slowly roll out to all Microsoft Security products. According to benchmarks posted by Microsoft on Monday, the combination scored 96% on CyberGym, compared with Mythos 5 at 84%. Speaking at a Microsoft briefing on Monday morning, Mustafa Suleyman, CEO of Microsoft AI, explained the handover process between MAI-Cyber-1-Flash and GPT-5.4. “In conjunction, as the models hand off between each other, they’re actually not just able to deliver better performance than all of the other models combined — they do so at 50% of the cost.” Suleyman called the CyberGym benchmark result “quite a remarkable result.” It follows the launch of Anthropic’s Claude Fable 5 last month, the first publicly available model from the Mythos family.