ChatGPT✓ ReviewedAnnounced 3 September 2026Reviewed 10 October 2026GPT-6 Astra will run more of your computer work on its own. That is a capability, not a permission slip.
Reviewed editorial Update
GPT-6 Astra will run more of your computer work on its own. That is a capability, not a permission slip.
OpenAI began rolling out GPT-6 Astra, its new flagship, on 3 September 2026, first to a limited set of organisations and then to ChatGPT Plus, Pro, Business and Enterprise, the API and AWS. It carries the same headline $10 in and $50 out per million tokens as Claude Fable 5.1, so price is no longer what separates the two flagships. What changed is how much research, coding, computer-use and agentic work it will attempt without you, which is exactly where a person still owns the result.
What changed
OpenAI started rolling out GPT-6 Astra on 3 September 2026, initially to a limited set of organisations and, over the following days, to ChatGPT Plus, Pro, Business and Enterprise users, the OpenAI API and AWS. It is aimed at research, coding, computer use, document, spreadsheet and presentation work and long-running agentic tasks, and OpenAI describes it as able to do anything you can do on a computer. The API model id is gpt-6-astra, with a 1,050,000-token context window, up to 128,000 output tokens, a knowledge cutoff of 30 April 2026, text and image input with text output, and adjustable reasoning effort. Its headline API pricing, $10 per million input tokens and $50 per million output tokens, matches Claude Fable 5.1, though the two differ on cache economics, where Fable 5.1 reads cache at $0.25 per million tokens against Astra's $1. OpenAI also says Astra is the first model it has rated at the Critical cybersecurity capability level under its Preparedness Framework, which is the stated reason the rollout is phased. Its benchmark scores and its most-intelligent-model framing are vendor self-reported, and the comparison OpenAI drew to Claude was against Fable 5, not the current Fable 5.1. In ChatGPT itself Astra is sold as GPT-6 Pro, which OpenAI says is available on the Pro $100, Pro $200, Business and Enterprise plans.
Why it matters
A more capable flagship at the same price reads as a reason to hand over more, and Astra is sold explicitly as doing anything you can do on a computer. But can do is a capability claim, not a judgement that the output is right or that the action was wanted. The launch that widens what the model will attempt on its own is the same one OpenAI rated Critical on cyber capability and rolled out in stages for that reason. The distance between what it will attempt and what you can accept is now wider, not narrower, and that distance is the work.
Bit’s takeaway
The human take
A person decides which task is safe to hand to a more independent model, keeps a checkpoint on any action that is hard to undo, tests Astra and Fable 5.1 on their own work rather than the benchmark slide, and reads the real bill before switching anything in production.
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- OpenAI's GPT-6 Astra carries the API model id gpt-6-astra, with a 1,050,000-token context window, up to 128,000 output tokens, a knowledge cutoff of 30 April 2026, text and image input with text output, and adjustable reasoning effort at low, medium, high, xhigh and max. Published API pricing is $10 per million input tokens, $1 per million cached input tokens, $12.50 per million cache-write tokens and $50 per million output tokens, so its headline input and output rates match Claude Fable 5.1; the two flagships differ on cache economics, where Fable 5.1 reads cache at $0.25 per million tokens against Astra's $1.Reviewed
Technical record
[gpt-6-astra-fact; official_fact; product_fact; reviewed 2026-10-10; sources: OpenAI GPT-6 Astra model reference (developers.openai.com) (https://developers.openai.com/api/docs/models/gpt-6-astra)] OpenAI's GPT-6 Astra carries the API model id gpt-6-astra, with a 1,050,000-token context window, up to 128,000 output tokens, a knowledge cutoff of 30 April 2026, text and image input with text output, and adjustable reasoning effort at low, medium, high, xhigh and max. Published API pricing is $10 per million input tokens, $1 per million cached input tokens, $12.50 per million cache-write tokens and $50 per million output tokens, so its headline input and output rates match Claude Fable 5.1; the two flagships differ on cache economics, where Fable 5.1 reads cache at $0.25 per million tokens against Astra's $1.
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