OpenAI's Astra hits critical cybersecurity threshold
OpenAI just announced that its upcoming Astra model has reached the "Critical" cybersecurity threshold, capable of autonomously finding zero-day flaws and developing exploit chains across hardened systems. To prevent misuse, the lab delayed release timelines and hardened its defenses, boosting cyber jailbreak refusals to 91.5% compared to 59% on GPT-5.6 Sol. Advanced defensive capabilities will initially be limited to alpha testers.