There is a category called "Annie Maunder Open Category", which allows for creative use of generative AI, as long as it is declared, otherwise it is banned. You have to take that slightly with a pinch of salt though, as many of the images don't represent what could be seen with the naked eye. It could be as simple as a wide spectrum sensor (which I don't think anyone could claim is AI) through to alignment of many 100s of images (for which the algorithms in use may have been considered AI a decade or 2 ago).