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OpenAI rolled out GPT-5.1 Pro to all Pro users.
The company said that in early testing, users rated it “especially highly for writing help, data science, and business questions.” Enterprise users should receive access next Monday, per OpenAI. GPT-5 Pro, the new model’s predecessor, will be available via the legacy model dropdown menu for 90 days before OpenAI retires it.
ChatGPT — Release Notes
[OpenAI]
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