ChatGPT 4o accessed through Sora appears to be a little less restrictive than it is through the chat interface. For instance, it had no problem generating the Ripley/Newt/Xenomorph idea that I mentioned it refusing to do in this thread.
It did still refuse to do Mulder and Scully arresting Billy Peltzer, though. (I think it rendered the image and then decided it was bad instead of stopping at the prompt level.)