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

https://rapid-wiki.win/index.php/Why_Does_Grok_Say_Storage_Limit_Exceeded_After_I_Deleted_Chats%3F

To delete your Grok chat history on grok.com/app or X, open your chat, select the delete option, and confirm. Remember, deleted chats move to Recently Deleted and stay for 30 days before permanent removal