Releases
GPT-6 Astra
Updated Sep 3, 2026Editorial baselineHuman sign-off: TODO
OpenAI’s launch post introduces GPT-6 Astra and points at later Sol and Luna updates.
OpenAI’s launch post introduces GPT-6 Astra as its most capable model at the time and says it rolled out to paid ChatGPT plans and the API, with later updates on 22 Sep and 29 Sep for Sol, Luna, and GPT-6.1 Sol.
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