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

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 and clear your conversations there. On X, remove any shared chats from your messages. Remember, deleting chats won’t erase files or Imagine media—those must be deleted separately