OpenAI announced GPT-6 Astra on September 3, 2026, positioning it as their most capable flagship model to date, achieving state-of-the-art results on FrontierMath Tier 4, ARC-AGI 3, TerminalBench-4.0, Terminal-Bench Science 0.1, and HealthBench Pro. The model is framed as a general-purpose computer agent — capable of browsing, software engineering, cybersecurity, and scientific workflows — with the tagline 'Anything you can do on a computer, Astra can do for you.' It launched in limited release to select organizations with a rollout planned for ChatGPT Plus, Pro, Business, Enterprise, the OpenAI API, and AWS. The benchmark sweep across math, reasoning, and scientific domains signals a meaningful step toward AI systems that can autonomously conduct research and handle complex professional tasks.