Up to 20 people can now be added to a group chat in ChatGPT. The responses are powered by GPT-5.1 Auto. The feature is available to logged-in users and is rolling out globally. AI has officially ...

ChatGPT can help with many things—creating images, looking up information, role-playing, solving math problems, programming and much more. But at the heart of everything it does are so-called “large ...