The leaders responsible for keeping OpenAI's AI safe keep leaving

OpenAI CEO Sam Altman waves to cameras as he arrives for the Allen & Co. conference in Sun Valley, Idaho. Bloomberg/Bloomberg via Getty Images OpenAI said its head of safety systems, Johannes Heidecke, has left. Heidecke is the latest in an ever-growing list of safety team leaders to quit the company. Some departing safety researchers have questioned OpenAI's commitment to developing AI safely. Another leader of OpenAI's safety strategy is leaving, joining an ever-growing list of employees…