OpenAI just released its answer to Claude Mythos

A striking development has emerged in artificial intelligence. AI AIPosts from this topic will be added to your daily email digest and your homepage feed. FollowSee All AI News NewsPosts from this topic will be added to your daily email digest and your homepage feed. FollowSee All News Tech TechPosts from this topic will be added to your daily email digest and your homepage feed.

FollowSee All TechOpenAI just released its answer to Claude MythosOpenAI’s Daybreak combines GPT-5. 5-Cyber and Codex Security. OpenAI’s Daybreak combines GPT-5.

Technical Details

5-Cyber and Codex Security. by Stevie Bonifield Stevie BonifieldNews WriterPosts from this author will be added to your daily email digest and your homepage feed. FollowSee All by Stevie BonifieldMay 11, 2026, 11:05 PM UTC Image: Cath Virginia / The Verge, Getty Images Stevie Bonifield Stevie BonifieldPosts from this author will be added to your daily email digest and your homepage feed.

FollowSee All by Stevie Bonifield is a news writer covering all things consumer tech. Stevie started out at Laptop Mag writing news and reviews on hardware, gaming, and AI. 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. Its launch comes just over a month after rival Anthropic announced Claude Mythos, a security-focused AI model it claimed was too dangerous to publicly release and only shared privately as a part of its own initiative, dubbed Project Glasswing. Still, that didn’t stop at least a few unauthorized parties from getting access.

Industry Implications

However, OpenAI has so far lacked a similar security product. Like Glasswing, Daybreak isn’t built on just one AI model — OpenAI says “Daybreak brings together the most capable OpenAI models, Codex, and our security partners. ”Daybreak also involves specialized cyber models, including GPT-5.

5 with Trusted Access for Cyber and GPT-5. 5-Cyber, which began rolling out last week. OpenAI also says it’s working with its “industry and government partners” while it prepares to “deploy increasingly more cyber-capable models.

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This advance offers important signals about the future of the sector, and the tech world is watching closely.