Models
OpenAI launches GPT-6 Astra to ChatGPT and API
OpenAI introduced GPT-6 Astra on 3 Sep 2026 as its most capable model for computer use, coding, cybersecurity, science, and professional work. Rollout starts with a limited set of organizations and, over the coming days, reaches ChatGPT Plus, Pro, Business, and Enterprise plus the OpenAI API, Microsoft Azure, and AWS Bedrock (model id gpt-6-astra; Standard API pricing $10 / $50 per million input / output tokens). OpenAI says Astra saturates FrontierMath Tier 4 at 98%, ARC-AGI-3 at 99.9%, and ExploitBench at 100%, meets the Critical cyber threshold under its Preparedness Framework with stronger safeguards, and plans Daybreak access for broader defensive cyber workflows in the coming weeks; Enterprise Astra is off by default at launch.