Daybreak
Frontier AI for cyber defenders.
A cybersecurity-defense product that brings together OpenAI frontier models, Codex workflows, repository scanning, threat modeling, and patch generation to help teams continuously secure software.
Recent stories
Vals reports DeepSeek completed 72.8% of objectives in isolated enterprise cyber simulations, versus 80.8% for GPT-6 Sol through Daybreak. On Lighthouse, DeepSeek completed 21 objectives at about a tenth of the cost.
OpenAI says it restored access for affected OpenCode customers and refunded stolen credits. OpenCode's developer says Daybreak was critical to the response after other models began refusing investigative work.
OpenAI released GPT-5.6-Cyber through expanded Daybreak Blue and Red tiers for authorized vulnerability research, exploit validation, and testing. OpenAI frames the release as less-restricted access for defenders with safeguards.
OpenAI launched Daybreak, combining GPT-5.5, Codex workflows, repo scanning, threat modeling, and patch generation for cyber-defense teams. It packages frontier models into a continuous secure-software workflow, so teams can test whether it fits their response pipeline.