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XBow benchmarks top AI models on offensive cybersecurity skills

Original: Between January and July 2026, the team at @ xbow evaluated top AI models—including GPT-5.5, Mythos Preview, Opus 4.7, G

The XBow team ran a months-long evaluation, from January through July 2026, testing leading AI models including GPT-5.5, Mythos Preview, Opus 4.7, GLM-5.2 and Grok 4.5 on offensive cybersecurity tasks. Their report, shared ahead of DEF CON's Application Security Village, lays out comparative findings on how well current frontier models perform real-world attack and exploitation work, drawing attention from security researchers.

Why now: Security professionals are weighing how capable frontier AI models have become at offensive cyber operations.

XBowOpenAI GPT-5.5Anthropic Opus 4.7Grok 4.5DEF CON

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• Between January and July 2026, the team at @ xbow evaluated top AI models—including GPT-5.5, Mythos Preview, Opus 4.7, GLM-5.2, and Grok 4.5—to test their capabilities in offensive cybersecurity. Key takeaways from the report include: 🔹 Comprehensive evaluation findings across… · AppSecVillage@defcon.social

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