To delete your Grok chat history, go to grok.com/app and remove conversations...

https://seo.edu.rs/blog/how-do-i-export-my-grok-chats-before-deleting-everything-11136

To delete your Grok chat history, go to grok.com/app and remove conversations manually. On X, clear your chat threads there too. Remember, files and Imagine media don’t delete automatically—they need to be removed separately