Almost the entire staff of OpenAI has now signed a letter threatening to leave and join a new venture led by ousted CEO, Sam Altman. Some 738 out of its around 770 employees, about 95 percent of the company, are now listed on the letter released early this morning. The letter calls for Altman and his fellow OpenAI cofounder and close associate Greg Brockman to be reinstated, for the board that fired Altman and removed Brockman from his position as chair to resign, and for new board members to be appointed. Altman was fired from his position as CEO of OpenAI on Friday. Brockman was removed from his position as chair and quit the company hours later in protest over Altman's removal.

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