To delete your Grok chat history, go to grok.com/app or use the X platform....

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 or use the X platform. Find your chats and choose delete. Remember, deleting chats doesn’t remove files or Imagine media—that needs to be done separately