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

https://www.bookmarkingqueen.win/to-delete-your-grok-chat-history-go-to-grok-com-app-and-remove-messages

To delete your Grok chat history, go to grok.com/app and clear conversations directly there. On X, remove chats by selecting and deleting messages from the thread