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Microsoft relies 90 percent of its bug hunting on a mini-model

Microsoft unveiled on July 27 MAI-Cyber-1-Flash, a compact model derived from its in-house reasoning model MAI-Thinking-1 and designed to identify software vulnerabilities. Paired with GPT-5.4 in the MDASH multi-agent harness, it achieves 95.95% on the CyberGym benchmark compared to 88.45% in May, absorbs up to 90% of common security…

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