OpenAI expands Daybreak with GPT-5.5-Cyber and Patch the Planet

OpenAI Blog

GPT-5.5-Cyber scores 85.6% on CyberGym, beating Anthropic's Mythos 5 (83.8%). OpenAI also launches Codex Security plugin and Patch the Planet partnership with Trail of Bits to secure open-source projects.

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OpenAI Blog

Jun 23, 1:36 AM