Staff at OpenAI have called on the board of the company to resign after the shock dismissal of former boss Sam Altman.
In a letter, they question the board’s competence, and accuse it of undermining the firm’s work.
They also demand Mr Altman’s reinstatement.
The sacking on Friday of a man who is one of the leading figures in artificial intelligence (AI) shocked the tech world.
The letter’s many signatories, who include senior staff, say they may themselves resign if their demands are not met.
They also state that Microsoft has assured them that there are jobs for all OpenAI staff if they want to join the company.
Lilian Weng, head of safety systems at OpenAI, posted on X – formerly Twitter – that more than 650 of the company’s 770 workers had put their names to the letter.
Another signatory is OpenAI’s chief scientist, Ilya Sutskever – despite being a member of the board which now finds itself under fire.
Writing on X, he said that he had made a mistake.
In a fast moving and chaotic series of events over the weekend it seemed briefly that Mr Altman might get his job back, only for it to be announced he was joining Microsoft, a major funder of OpenAI.
Microsoft chief executive Satya Nadella wrote on X, that Mr Altman would be leading “a new advanced AI research team”.
Responding to the post confirming his new job, but before the letter was published, Mr Altman wrote “the mission continues”.
Meanwhile, ex-Twitch CEO Emmett Shear will become OpenAI’s new interim boss.
Writing on X, he called the job a “once-in-a-lifetime opportunity”.
But he added the way Mr Altman had been sacked was “handled very badly” and “seriously damaged our trust”.
Mr Altman, 38, helped launch the firm – best known for creating the popular ChatGPT bot – and has become one of the most influential figures in the fast-growing generative artificial intelligence (AI) space.
The sacking of such a high profile figure surprised industry watchers, and angered many in the company he’d led – culminating in them demanding the board members resign.
Dan Ives of investment firm Wedbush Securities says Microsoft has ended up being strengthened – but the episode reflected badly on OpenAI.
They were “at the kid’s poker table and thought they won until Nadella and Microsoft took this all over in a World Series of Poker move for the ages”, he wrote.
OpenAI’s new boss Emmett Shear is the former head and co-founder of video streaming service Twitch. A memo to OpenAI’s staff said he had a “unique mix of skills, expertise and relationships that will drive OpenAI forward”.
In spite of now being at the helm of one of the world’s most powerful AI companies – and being a self-described “techno-optimist” – Mr Shear has expressed concerns about what he sees as the potential existential threat posed by the technology.
The exact reasons for Mr Altman’s sacking by the board remain unclear.
On Friday, when OpenAI announced it was firing Mr Altman, it accused him of not being “consistently candid in his communications with the board, hindering its ability to exercise its responsibilities” – but did not specify what he is alleged to have not been candid about.
Mr Shear has addressed some of the speculation on the subject.
The mention of safety could suggest that this was not a disagreement about the management of the risks AI may pose, though the words are open to interpretation.
But Mr Shear committed to hiring an independent investigator “to dig into the entire process”.