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

https://victor-wiki.win/index.php/What%E2%80%99s_the_Difference_Between_Deleting_Grok_History_and_Deleting_the_Account%3F

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