OpenAI Launches Daybreak for Enhanced Cyber Defense

Introducing Daybreak: frontier AI for cyber defenders.

Daybreak brings together the most capable OpenAI models, Codex, and our security partners to accelerate cyber defense and continuously secure software.

A step toward a future where security teams can move at the speed… pic.twitter.com/AGfXhmJb5E

— OpenAI (@OpenAI) May 11, 2026