The new GPT-5.6-Cyber model, available to vetted defenders through Daybreak Red, completed 95% of advanced cybersecurity task requests in testing

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