To delete your Grok chat history on grok.com/app and X, open your chat, select...

https://tiny-wiki.win/index.php/Should_I_Export_Grok_Data_Before_I_Delete_Chat_History%3F

To delete your Grok chat history on grok.com/app and X, open your chat, select the messages, and choose Delete. Remember, deleting chats doesn’t remove files or Imagine media—they need to be deleted separately