GPT-6 Astra released for reasoning, coding and computer use, without the none effort level

Released GPT-6 Astra, our most capable model, built for the hardest end-to-end work.

Use GPT-6 Astra for reasoning, coding, computer use, research, and document creation. It combines these capabilities to carry complex tasks from an initial request to a finished result, using the context and tools you provide.

Key changes to consider when migrating:

• GPT-6 Astra does not support the none reasoning effort level.
• GPT-6 Astra does not support custom temperature or top_p values or log probabilities (logprobs).
• Tool calling requires the Responses API. If you use tools with Chat Completions, follow the Responses migration guide.
• Misalignment monitoring asynchronously checks for potential issues during agent work in supported Responses API requests. Checks can trigger safety alerts or stop a conversation for review.

Start with Using GPT-6 Astra for capabilities, prompting, and migration guidance. Explore computer use for browser and desktop workflows, and see pricing for available inference tiers.