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GPT-5.1: A smarter, more conversational ChatGPT
OpenAI releases GPT-5.1 to paid ChatGPT users, upgrading the GPT-5 series with improved capability and new tone and style customisation options.
We’re upgrading the GPT-5 series with warmer, more capable models and new ways to customize ChatGPT’s tone and style.
GPT-5.1 starts rolling out today to paid users.
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