Sutskever has shifted to safety and alignment research this year. Previously he was directly in charge of the development of GPT, from GPT-1 on. Brockman did a

Sutskever has shifted to safety and alignment research this year. Previously he was directly in charge of the development of GPT, from GPT-1 on. Brockman did an entirely different type of work than Sutskever. Brockman's primary focus was on the infrastructure side of things - by all accounts the software he wrote to manage the pre-training, training, etc., is all world-class and a large part of why they were able to be as efficient as they are, but that is not the same thing as being the brains behind the ML portion.