OpenAI Launches Daybreak: AI-Powered Vulnerability Detection Platform

OpenAI announced Daybreak on May 12, 2026, a cybersecurity platform combining GPT-5.5 model variants and Codex Security to help organizations identify, validate, and remediate software vulnerabilities before attackers exploit them. The platform offers three GPT-5.5 tiers — standard, Trusted Access for Cyber for vetted defenders, and GPT-5.5-Cyber for red teaming — with capabilities spanning secure code review, threat modeling, patch validation, and dependency analysis. Major security vendors including Akamai, Cisco, Cloudflare, CrowdStrike, and Palo Alto Networks are already integrating Daybreak.