There is no biological evolution of the models. They are emulators of an existing biological process of language. Ghosts, as Karpathy himself put it.
Like driving a car — it's transportation, and it will get you where you're going, but it doesn't use bones or muscles. It has many characteristics in common with builogical locomotion, such as energy requirements, intertia, and the need to navigate, but it doesn't involve proteins or sugars really.
GenAI thinks like the human mind in the same way that cars run like the human body.
Similar utility in drastically different ways.