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

https://zaneznae304.lucialpiazzale.com/how-do-i-check-if-grok-deletion-actually-worked

To delete your Grok chat history, go to grok.com/app and clear conversations there. On X, remove any chats separately. Remember, files and Imagine media don’t delete with chat history—you’ll need to remove those on their own