Three senior OpenAI executives who helped launch the company’s original Stargate data center initiative have left or are preparing to depart the ChatGPT maker in the coming days, according to several people with direct knowledge of the matter.

Peter Hoeschele, an OpenAI executive who played a key role in getting the Stargate effort off the ground, has already left the company, one of the people said. Two others—Shamez Hemani, who worked on compute strategy and business development, and Anuj Saharan, another leader in OpenAI’s compute organization—have announced their departures to colleagues, two other people said..