OpenAI Releases GPT-6 Astra: A 1.05M-Context Computer-Use Model Gated Behind a ‘Critical’ Cyber Threshold

OpenAI released GPT-6 Astra on September 3, 2026, positioning it as a computer-use flagship rather than a chat model. It reports 72.6% on OSWorld V2-Offline, replaces Codex compaction with searchable notes, and ships a 1.05M-token context at $10/$50 per million tokens. It is also the first OpenAI model to cross the Critical cybersecurity threshold, which shapes who can use it and for what. The…