To delete your Grok chat history, go to grok.com/app or open the X app, find...

https://blogfreely.net/samuel-wang09/whats-the-safest-way-to-keep-a-copy-of-one-important-grok-thread

To delete your Grok chat history, go to grok.com/app or open the X app, find your chat conversations, and delete them. Remember, deleted chats move to Recently Deleted and stay there for 30 days before permanent removal