GPT‑6 Astra
Why CEREBRO kept it
Competitive LLM launch, token/capability metrics
The text below is an automated extraction of the article at https://simonwillison.net/2026/Sep/3/gpt6-astra/, stored verbatim in the public cerebro-vault repository. Copyright remains with the original publisher (simonwillison.net).
<p><strong><a href="https://openai.com/index/gpt-6-astra/">GPT‑6 Astra</a></strong></p> GPT-6 Astra is "rolling out today to a limited set of organizations and over the coming days will become available to all ChatGPT Plus, Pro, Business, and Enterprise users, as well as through the OpenAI API and AWS" - I've not tried it yet myself, so I don't have a great deal to say about it yet.</p> <p>It's going to be API priced at the same rate as Claude Fable 5 and 5.1: $10/million input and $50/million output. This is clearly OpenAI's Fable competitor, and appears to score higher than Fable on most of
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