The OpenAI team just released GPT-5.1, one of its biggest updates in a while. The update brings a few changes, but the most noticeable is to ChatGPT’s personality.

Users now get more control over how ChatGPT interacts with them and can now alter its tone, formality, and sense of humor. This will be great news to anyone who has had a hard time coming to grips with ChatGPT’s overly friendly personality, or even those who want to dial it up even more.

Along with improvements to the model’s personality, it is also now better at following instructions and more reliably answering the questions you’ve asked.

There are two versions: GPT-5.1 Instant and GPT-5.1 Thinking, which are both available right now globally. However, you'll need a paid plan like Pro, Plus, Go, or Business to try them. How

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