To delete your Grok chat history, go to grok.com/app and clear your...
https://victor-wiki.win/index.php/What%E2%80%99s_the_Difference_Between_Deleting_Grok_History_and_Deleting_the_Account%3F
To delete your Grok chat history, go to grok.com/app and clear your conversations there. Also, check your X account if you use it to chat with Grok