To delete your Grok chat history on grok.com/app and X, go to your chat...
https://www.4shared.com/office/SLfWvZpiku/pdf-40651-86872.html
To delete your Grok chat history on grok.com/app and X, go to your chat settings and select “Delete History.” Remember, this only removes messages—you’ll need to delete files and Imagine media separately in their own sections