OpenAICEOSam Altman, ousted four months ago from the company he co-founded, is now fully back in control.

His return to its board of directors as part of a reshaped oversight team was announced on Friday.

He then briefly went to work forMicrosoft, which had a $13 billion partnership with OpenAI.

Sam Altman

OpenAI CEO Sam AltmanJustin Sullivan/Getty Images

Then, weeks after his axing, Altman was rehired as CEO by OpenAI.

They kept Quora CEO Adam DAngelo as the sole remaining board member from Altmans prior era.

OpenAI also announced the completion of an independent investigation into the circumstances surrounding Altmans firing.

SAG-AFTRA National Executive Director Duncan Crabtree-Ireland at the 31st Screen Actors Guild Awards in February 2025

It concluded that Altman was fired not out of concern for safety or security related to artificial intelligence.

Instead, the board members believed firing Altman would fix management issues.

That argument collapsed when hundreds of employees threatened to quit and demanded Altmans return.

He was also given no chance to defend himself or correct any errant behavior, the probe concluded.