Alphabet and Google CEO Sundar Pichai. Michael M. Santiago/Getty Images OpenAI lost two more senior staffers after a trio of departures in mid-April. Paul Zimmerman, the AI lab's former head of private equity, announced a move to Google. OpenAI, Anthropic, and Google are increasingly turning to PE firms for help ramping sales. Two more senior staffers left OpenAI in recent days, including its head of private equity, who was hired by Google. Paul Zimmerman said he now leads Google's efforts to