This is explained in more detail here: https://www.justinpinkney.com/toonify-yourself/ https://www.justinpinkney.com/toonify-yourself/ Specifically, there's th

This is explained in more detail here: https://www.justinpinkney.com/toonify-yourself/ https://www.justinpinkney.com/toonify-yourself/ Specifically, there's this snippet: "These StyleGAN face models can produce a huge diversity of faces and it’s actually possible to find basically any face inside the model. It’s actually a straight forward process to search for any image of a face in the model. So given an example image you want to find you can find a “code” (aka latent vector) which, when given as an input to the model, will produce an output which looks almost exactly like the face you’re looking for." So it seems like they first generate an image that is similar to yours with one model, and then translate that too its more cartoony counterpart.