To delete your Grok chat history, go to grok.com/app or your X account and...

https://domgodwinson38.gumroad.com/p/how-do-i-delete-files-from-grok-the-ones-people-forget-a-full-cleanup-guide

To delete your Grok chat history, go to grok.com/app or your X account and remove conversations there. Remember, deleting chats doesn’t erase files or media you created with Imagine—those need to be deleted separately