I have to admit, of the four, Karpathy and Sutskever were the two I was most impressed with. I hope he goes on to do something great.
When the next wave of new deep learning innovations sweeps the world, Microsoft eats whats left of them. They make lots of money, but don't have future unless they replace what they lost.
They have the next iteration of GPT Sutskever helped to finalize. OpenAI lost it's future unless they find new same caliber people.
How do you know that they have the next GPT?
How do you know what Sutskever contributed? (There was talk that the most valuable contributions came from the less well known researchers not from him)