Oh I see... and a "model" is always young, skinny, white and female I guess (cannot blame the AI though, I guess that is what you get if you look at the internet as a whole as your training data).

EDIT: I had to lookup "waifu" and it seems the author probably prompted for "waifu model"(?)... according to Wikipedia, for those like me who are not into that sort of thing:

"A Waifu is an illustrated female character from an anime or any non-live action media in which an individual becomes sexually attracted to."