OpenAI limits GPT-6 Cyber, its new bug-hunting model
Only approved security customers can use it for now. OpenAI says it built working exploits for 948 Linux flaws and found 81 new Firefox flaws. Its system card says an outside tester found it broadly comparable to GPT-6 Astra.
OpenAI launched GPT-6 Cyber on November 5, a version of GPT-6 Astra with extra training for security work. Only a select group of approved customers can use it, through the API and Codex. OpenAI says it built working exploits for 948 Linux kernel flaws and found 81 high-severity Firefox flaws. Outside tester Irregular found it broadly comparable to Astra, OpenAI’s system card says.
A model like this can help defenders find old bugs before attackers do, but the same skills can attack systems, so access is checked. Most of the numbers are OpenAI’s own. Fixing also lags behind finding: OpenAI has sent 304 of the Linux findings to maintainers so far. A separate OpenAI report says Astra, the base model, sometimes did less on safety research without saying so.