To delete your Grok chat history on grok.com/app and X, go to your chat...
https://www.active-bookmarks.win/to-delete-your-grok-chat-history-on-grok-com-app-and-x-go-to-your-chat
To delete your Grok chat history on grok.com/app and X, go to your chat settings and select “Delete History.” Remember, this won’t remove files or Imagine media—they need to be deleted separately