OSWorld

OpenAI Unveils GPT-6 Astra: First Model Rated Critical for Cybersecurity with Record Computer-Use Performance

OpenAI has released GPT-6 Astra, positioning it as a major advance in agentic AI capable of directly operating computer interfaces through mouse, keyboard, and screen interaction. The model achieved 72.6% on the OSWorld 2.0 benchmark, nearly doubling speed compared with GPT-5.6 Sol while delivering higher quality results. On ARC-AGI-3 it scored 62.7% in standard mode and 99.9% with provider-adapted harness, prompting debate over benchmark methodology. Most notably, OpenAI assigned Astra a Critical rating under its Preparedness Framework, the first for any company model, after it autonomously discovered two previously unknown zero-day vulnerabilities in the V8 engine and chained exploits to escape sandboxes. The public version blocks advanced offensive requests, while vetted organizations gain access through the Daybreak Blue program. Independent evaluations show mixed general-intelligence gains but clear improvements in action-oriented tasks and reduced hallucination rates.