OpenAILaunchAI ModelsSeptember 3, 2026

OpenAI releases GPT-6 Astra, its first Critical-level cyber model

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GPT-6 Astra is OpenAI's "best model yet," combining computer use, asynchronous tool calling, and steering in the Responses API. It is the first OpenAI model to reach the Critical cybersecurity capability level under its Preparedness Framework.

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