New personalities in ChatGPT

Product Update - Introduction of GPT-5.1 and new personalization controls for all users [1] - Eight unique chat styles are available in ChatGPT, including three new options [1] - New chat styles are accessible across all ChatGPT models [1] Chat Style Personalization - Users can now personalize ChatGPT with eight distinct chat styles: Default, Professional, Candid, Quirky, Friendly (formerly Listener), Efficient (formerly Robot), Nerdy, and Cynical [1]