Models
May 12, 2026

OpenAI launches Daybreak to strengthen AI-powered cyber defense

OpenAI has introduced Daybreak, a cybersecurity initiative that combines GPT-5.5 models, Codex Security, and enterprise partnerships to identify software vulnerabilities and improve automated cyber defense capabilities.

OpenAI has launched Daybreak, a new cybersecurity platform focused on detecting, validating, and fixing software vulnerabilities using advanced AI systems. The initiative combines GPT-5.5 cyber models, Codex Security, and collaborations with enterprise partners including Cloudflare, Cisco, CrowdStrike, Oracle, and Zscaler.

OpenAI says Daybreak is designed to help organizations automate threat modeling, identify attack paths, generate code patches, and strengthen security defenses before vulnerabilities are exploited.

Unlike some restricted cyber AI programs, Daybreak is publicly accessible for organizations seeking security assessments and AI-powered protection workflows. The launch highlights growing competition in AI-driven cybersecurity as companies race to build autonomous defense systems for enterprise infrastructure.

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