Barret Zoph leaves OpenAI again, joins Google as VP of Research
Barret Zoph, who co-founded Thinking Machines with Mira Murati after leaving OpenAI in 2024, returned to OpenAI in January but departed again after just five months leading enterprise AI sales. He has now joined Google as vice president of research, where he previously worked, to apply his reinforcement learning and post-training expertise to Gemini.