OpenAI launched Daybreak to help organizations identify, validate, and repair software vulnerabilities. The program integrates security workflows into the development process using frontier AI models and the Codex Security platform.

Daybreak uses AI to reason across codebases and generate automated patches. The initiative offers tiered access to specialized models, including GPT-5.5-Cyber.

Verified defenders use these tools for penetration testing and malware analysis. The program aims to increase software resilience from the initial development phase.