OpenAI aims to give cybersecurity defenders a head start: The new GPT-5.6-Cyber model answers up to 98.5 percent of security queries that would otherwise be blocked and has already uncovered two previously unknown Chrome vulnerabilities. According to OpenAI, the window of opportunity for defenders is shrinking. Access requires identity verification.

The move comes just days after OpenAI delayed its Astra model over hacking fears.

OpenAI launches Daybreak Blue and Daybreak Red cybersecurity models powered by GPT-5.5, finding V8 zero-days and scoring 85.6% on CyberGym