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

https://stateofseo.com/how-do-i-handle-a-stubborn-grok-file-that-wont-delete/

To delete your Grok chat history on grok.com/app and X, open your chat, select messages you want gone, and choose delete. Remember, this removes text but not files or Imagine media—they need deleting from their specific spots