To delete your Grok chat history, go to grok.com/app and clear conversations...

https://seo.edu.rs/blog/how-do-i-export-my-grok-chats-before-deleting-everything-11136

To delete your Grok chat history, go to grok.com/app and clear conversations directly there. You can also delete chats on X if you use it for Grok messages