OpenAI Launches Daybreak: AI Cybersecurity Initiative Powered by GPT-5.5 and Codex Security
OpenAI launched Daybreak on May 11, 2026 — a cybersecurity initiative that deploys frontier AI models as active participants in the software security lifecycle. Powered by GPT-5.5 (released April 23, 2026) and a new agentic layer called Codex Security, Daybreak is positioned as OpenAI’s answer to the growing consensus that AI must be part of software defense, not just software development. The name is intentional: Daybreak means seeing risk before it becomes an exploit. ...