To delete your Grok chat history on grok.com/app and X, go to your chat...

https://technivorz.com/what-pages-do-i-need-to-visit-to-delete-everything-tied-to-grok/

To delete your Grok chat history on grok.com/app and X, go to your chat settings and choose to clear conversations. Remember, deleting chats doesn’t remove files or Imagine media—they must be deleted separately