OpenAI says GPT-6 Astra reaches Critical cybersecurity level under Preparedness Framework
OpenAI has published a safety overview of GPT-6 Astra, which it describes as its strongest model in broad deployment to date. Under the company's internal Preparedness Framework, the model is assessed at the Critical tier for cybersecurity, marking the first time one of OpenAI's systems has reached that designation.
WHY IT MATTERS ↘It turns OpenAI's internal Preparedness Framework from stated policy into a live test: with the first Critical cybersecurity rating, deployment now hinges on the company's own thresholds and mitigations, and no external body validates either. That makes vendor self-assessment the de facto gate for frontier cyber capabilities and sets a precedent that rivals' safety frameworks will now be measured against.