OpenAI’s head of safety exits in wave of departures

OpenAI's head of safety systems, Johannes Heidecke, told staff this week that he is leaving the company, according to Wired. The departure adds to a wave of executive exits at the AI company as it undergoes organizational restructuring ahead of a prospective public offering.wired

A Pattern of Departures

Heidecke's exit comes just days after Fidji Simo, OpenAI's second-ranking executive and CEO of AGI deployment, announced she would step down from her full-time role and transition to a part-time advisory position due to a worsening neuroimmune condition. Two days before that, Wired reported that OpenAI's chief futurist, Joshua Achiam, notified colleagues on Tuesday that he would also leave the company later this month after nearly nine years.wired+2

The string of departures extends a longer pattern at OpenAI that has seen multiple safety-focused leaders exit the company. In November 2025, Andrea Vallone, who led model policy safety research, announced her departure. Earlier in 2026, OpenAI disbanded its mission alignment team entirely, reassigning members across the company and elevating Achiam to the chief futurist role.linkedin+3

Safety Integration and IPO Preparations

OpenAI's safety teams now report to the company's vice president of research as part of a broader integration of safety work into the research organization. The restructuring reflects OpenAI's stated approach of embedding safety practices within product teams rather than maintaining them as standalone units.cryptobriefing

The organizational changes come as OpenAI prepares for what could be one of the largest technology IPOs in history. The company confidentially filed paperwork with the Securities and Exchange Commission in June 2026, though a New York Times report in late June indicated OpenAI may delay its debut until 2027. The company's private-market valuation reached $852 billion in March 2026.smartasset+2

Broader Context

Heidecke, who led OpenAI's safety systems work and contributed to system cards for models including o1, is one of several researchers whose departures have raised questions about how the company balances rapid product development against safety commitments. OpenAI has sought to address such concerns in part by launching a Safety Fellowship program to fund external researchers studying AI risks, though critics continue to point to the gap between the company's stated safety priorities and its organizational decisions.scholar.google+1

The Wall Street Journal News Corp ↘ 0.64% reported that Simo's departure leaves a major role to fill as the company prepares for its public market debut.wsj