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

https://domgodwinson38.gumroad.com/p/how-do-i-delete-files-from-grok-the-ones-people-forget-a-full-cleanup-guide

To delete your Grok chat history, go to grok.com/app or your X messages and remove conversations there. Remember, deleting chats doesn’t erase files or Imagine media—those need to be deleted separately