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 Altman’s reinstatement.

The letter’s many signatories, including 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.

OpenAI’s chief scientist, Ilya Sutskever, has put his name to the letter, despite being a member of the board, which now finds itself under fire.

Writing on X, formerly Twitter, he said that he had made a mistake.