OpenAI has announced a refreshed board of directors and new governance structure following recent turmoil that saw CEO Sam Altman ousted, briefly recruited by Microsoft, and then quickly reinstated at the AI research company.

In a statement, OpenAI said Altman will rejoin the board alongside three new independent directors: Sue Desmond-Hellmann, former CEO of the Bill and Melinda Gates Foundation, Nicole Seligman, former executive vice president and general counsel at Sony Corporation, and Fidji Simo, CEO and chair of Instacart.

Bret Taylor, Chair of the OpenAI board, said: “I am excited to welcome Sue, Nicole, and Fidji to the OpenAI Board of Directors. Their experience and leadership will enable the Board to oversee OpenAI’s growth, and to ensure that we pursue OpenAI’s mission of ensuring artificial general intelligence benefits all of humanity.”

The previous board members who resigned amid the recent chaos were Helen Toner of Georgetown’s Center for Security and Emerging Technology, OpenAI chief scientist Ilya Sutskever, and entrepreneur Tasha McCauley.

Altman and Greg Brockman will continue to lead OpenAI as CEO and presi