Basically just the title, see the OAI blog post for more details.
Mr. Altman’s departure follows a deliberative review process by the board, which concluded that he was not consistently candid in his communications with the board, hindering its ability to exercise its responsibilities. The board no longer has confidence in his ability to continue leading OpenAI.
In a statement, the board of directors said: “OpenAI was deliberately structured to advance our mission: to ensure that artificial general intelligence benefits all humanity. The board remains fully committed to serving this mission. We are grateful for Sam’s many contributions to the founding and growth of OpenAI. At the same time, we believe new leadership is necessary as we move forward. As the leader of the company’s research, product, and safety functions, Mira is exceptionally qualified to step into the role of interim CEO. We have the utmost confidence in her ability to lead OpenAI during this transition period.”
EDIT:
Also, Greg Brockman is stepping down from his board seat:
As a part of this transition, Greg Brockman will be stepping down as chairman of the board and will remain in his role at the company, reporting to the CEO.
The remaining board members are:
OpenAI chief scientist Ilya Sutskever, independent directors Quora CEO Adam D’Angelo, technology entrepreneur Tasha McCauley, and Georgetown Center for Security and Emerging Technology’s Helen Toner.
EDIT 2:
Sam Altman tweeted the following.
i loved my time at openai. it was transformative for me personally, and hopefully the world a little bit. most of all i loved working with such talented people.
will have more to say about what’s next later.
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Greg Brockman has also resigned.
I expect investors will take the non-profit status of these companies more seriously going forwards.
I hope Ilya et al. realize what they’ve done.
Edit: I think I’ve been vindicated a bit. As I expected money would just flock to for profit AGI labs, as it is poised to right now. I hope OpenAI remains a non profit but I think Ilya played with fire.
It was anyway weird that they had LeCun in charge and a thing called "Responsible AI team" in the same company. No matter what one thinks about Sam Altman now, compared to LeCun, the things he said about AI risks sounded 100 times more reasonable.