What does it even mean to "output pixel"? The SVG format can be displayed with pixels, as can TARGA, JPEG, PNG, PostScript, and many others. Which format do you expect it to do, and why is that specific format the benchmark? Did your nephew produce the correct JPEG bytes in a minute?

Surely you don't expect a language model to move a child's hands and arms to produce the same pencil strokes. It would be the "do submarines swim like fishes" mistake again.

There is a difference when the image is created as jpg, png etc.

Because those are based on image training data. There is a bias in that images for showing 10:10 because it’s deemed the most aesthetic look.