Daybreak (cyber defense)

Overview

OpenAI's cyber-defense program, offering purpose-trained security models to vetted defenders, government agencies and enterprises under a tiered 'Trusted Access for Cyber' governance framework. Expanded Aug 10, 2026 into two access tiers (Blue for defensive workflows, Red for authorized offensive/penetration testing) alongside a new GPT-5.6-Cyber model.

Live since May 12, 2026 (Daybreak Blue/Red), expanded Aug 10, 2026 with GPT-5.6-Cyber, gated to vetted individual defenders and teams under Trusted Access for Cyber; OpenAI used the model to find two previously unknown Chrome V8 vulnerabilities (CVE-2026-15903), reported to Google.

Key Specs