> have LMMs hallucinate an entire operating system (...) technically it's now proven to be technically possible

You're comparing apples to oranges there!

To hallucinate is arbitrary, you can use a 2B image param model, it will hallucinate an OS no problem* running real time!

What this post is about is completely different, which is actually emulating the complete system in an LLM - that is hundreds (or more) times slower.

*absulutely crappy quality tho, unusable OS in practice