Technology

Daybreak is OpenAI's response to Anthropic's Claude Mythos

Engadget • Tue, 12 May 2026

OpenAI has launched a cybersecurity initiative called Daybreak, powered by GPT-5.5 and Codex Security.

What happened?

OpenAI has launched a cybersecurity initiative called Daybreak, powered by GPT-5.5 and Codex Security.

Story details

OpenAI has launched a cybersecurity initiative called Daybreak, powered by GPT-5.5 and Codex Security.

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This story helps build a stronger internal English tech archive around Technology, giving search visitors more reasons to keep browsing the site instead of bouncing after a single headline.

Original source

https://www.engadget.com/2170410/daybreak-openai-cybersecurity-initiative/

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 […]

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