Looks like gpt-image-1 to me, from the piss filter to some of the mistakes. I mean, image-2 or nano banana also still would have been dogshit. But I find it curious that image-1 was used (if I'm correct), I guess it means it was generated over 2 months ago, or via API, since afaik it hasn't been available in chatgpt since 2 came out (I could also be wrong here I suppose.)