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

https://extra-wiki.win/index.php/How_Do_I_Verify_Grok_Files_Are_Really_Gone_After_Deleting_Them%3F

To delete your Grok chat history on grok.com/app and X, open the app, go to your conversations, and choose “Delete” for each chat. Remember, deleting chats doesn’t remove files or Imagine media—you’ll need to delete those separately