Sam Altman attacked a member over a research paper that discussed the company, while directors disagreed about who should fill board vacancies open for months.
Changpeng Zhao will pay a $50 million fine and step down as chief executive of the company he created, the latest blow to the crypto world since the implosion of FTX last year.
Disagreements over the board’s makeup appear to have muddled negotiations. Mr. Altman was forced out as chief executive by the company’s board on Friday.