GPT-5.1 is here! OpenAI launches ChatGPT 5.1- here's what makes the new GPT-5.1 update a game-changer for ChatGPT users

OpenAI has introduced GPT-5.1, the next evolution of its popular ChatGPT model, just three months after unveiling GPT-5. The company says this latest update is “now warmer, more intelligent, and better at following your instructions.” It’s a move aimed at making AI feel more human and intuitive than ever.

What makes GPT-5.1 different?

GPT-5.1 focuses on making conversations feel more natural and intelligent. OpenAI describes the update as improving both its Instant and Thinking models. The GPT-5.1 Instant model — the one most people use — is “now warmer, more intelligent, and better at following your instructions.”



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The GPT-5.1 Thinking model, known for advanced reasoning, has also been refined to be faster on simple tasks while taking its time with more complex ones. Both models now respond with a friendlier, more conversational tone by default — a change users have been asking for, as per a report by 9to5Mac.

How does it improve the chat experience?

OpenAI says GPT-5.1’s biggest leap lies in how naturally it communicates. The Instant model’s replies sound less robotic and more like genuine writing. The company also added better tone controls so users can shape the AI’s personality. Options now include default, friendly, efficient, professional, candid, and quirky, allowing ChatGPT to adapt its style to your mood or task, as per a report by 9to5Mac.

Another improvement lies in precision, GPT-5.1 follows instructions more faithfully. For example, it can now correctly respond when asked to limit answers to a specific word count, solving a common frustration for users.


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When will users get GPT-5.1?

OpenAI is rolling out GPT-5.1 to paid ChatGPT subscribers first, including Pro, Plus, Go, and Business plans. The broader release to free and signed-out users will happen shortly after. GPT-5 will stay active for at least three more months, following backlash over older model removals earlier this year, as per a report by 9to5Mac.

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Meanwhile, Apple confirmed that ChatGPT integrated through Siri with Apple Intelligence currently uses GPT-5, with an upgrade to GPT-5.1 expected in a future iOS update.

FAQs

What’s new in GPT-5.1?

GPT-5.1 brings a warmer tone, smarter reasoning, and better instruction-following, with improved versions of both the Instant and Thinking models.


Who gets access to GPT-5.1 first?

Paid ChatGPT users on Pro, Plus, Go, and Business plans are receiving GPT-5.1 first, with free users to follow soon.