OpenAI Rated GPT-6 Astra Critical for Cyber Capability, a First, and Shipped It
GPT-6 Astra is the first model OpenAI has placed at the Critical tier for cybersecurity under its Preparedness Framework. Tested without production safeguards it scored 100% on ExploitBench, up from 78.5% for its predecessor. It ships with refusals, expanded monitoring, and enterprise access off by default.