OpenAI Launches GPT-6 Astra, Its Most Capable Model Yet
Key Points OpenAI launched GPT-6 Astra on September 3, 2026, calling it the best model in the world. Astra claims top scores on FrontierMath Tier 4, ARC-AGI-3, and TerminalBench-4.0. Rolling out now to ChatGPT Plus, Pro, Business, and Enterprise users and via the API. OpenAI CEO Sam Altman described
