Report A bug In ChatGPT Free

I See A bug In chatgpt free.
This works with gpt-3.5, but A few hours ago when I used it,He said that from the gpt-4 linguistic model And he had access to the Internet and extracted complete information from it. Of course now i can’t use gpt-4 and use gpt-3.5, But It’s a bug when free and commercial are same.