We’re updating ChatGPT’s tone controls so it’s easier to make responses sound the way you prefer. You can now choose from updated presets like Default, Friendly, Efficient, Professional, Candid, and Quirky (with Cynical and Nerdy still available), and we’re experimenting with more granular controls over how concise, warm, or scannable responses are, plus how often emojis appear.
Changes you make in Personalization now apply across all chats immediately (including existing conversations), and GPT-5.1 models follow your custom instructions and style preferences more reliably.