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

https://www.slideserve.com/aaron_ward92/how-do-i-delete-grok-chat-history-on-grok-com

To delete your Grok chat history on grok.com/app and X, open your chat settings and choose 'Delete Conversation.' Remember, deleting chat doesn’t remove files or images from Imagine—you’ll need to delete those separately