GPT-6 Astra Is Out. The First AI OpenAI Rates 'Critical'
OpenAI released GPT-6 Astra on September 3, 2026, to a small group first and to paid ChatGPT plans, the API and AWS in the coming days. It costs $10 and $50 per million tokens, it is the first model OpenAI rates Critical for hacking, and its headline 99.9% benchmark score falls to 62.7% on the benchmark's own standard setup.