Right, it was the case. Is it still? It's nearly the end of 2023, I see three papers with his name on them this year and they're all last-place names (i.e. minor contributions)
Does OpenAI still need Sutskever? A guy with his track record could have coasted for many, many years without producing much if he'd stayed friends with those around him, but he hasn't. Now they have to weigh the costs vs benefits. The costs are well known, he's become a doomer who wants to stop AI research - the exact opposite of the sort of person you want around in a fast moving startup. The benefits? Well.... unless he's doing a ton of mentoring or other behind the scenes soft work, it's hard to see what they'd lose.