OpenAI just released its answer to Claude Mythos

OpenAI launched Daybreak, an AI initiative to detect and fix security vulnerabilities in code before attackers exploit them. It uses the Codex Security AI agent to model threats, validate vulnerabilities, and automate detection of high-risk issues. This release follows Anthropic's private launch of Claude Mythos, a similar security-focused AI model.

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PublishedTuesday, May 12, 2026 at 1:05 AMMay 12, 01:05 AM

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OpenAI Daybreak uses its cyber AI models and Codex to detect and patch vulnerabilities, similar to Claude Mythos.

OpenAI is launching Daybreak, an AI initiative focused on detecting and patching vulnerabilities before attackers find them. Daybreak uses the Codex Security AI agent that launched in March to create a threat model based on an organization’s code and focus on possible attack paths, validate likely vulnerabilities, and then automate the detection of the higher risk ones.

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OpenAI just released its answer to Claude Mythos

Original article excerpt