The ex-Y Combinator president Sam Altman was fired as CEO of AI startup OpenAI by OpenAI’s directors. The company’s president and co-founder, Greg Brockman, resigned, as did three senior OpenAI researchers. OpenAI is embroiled in a fast-moving situation, and more details may be revealed in the coming days. A timeline of Sam Altman’s firing was constructed by TechCrunch to track the events that led to his departure. In the meantime, Microsoft, which is a significant investor in OpenAI, insists that it remains committed to its partnership with OpenAI. Investors are now pushing for Altman’s return, and some are reportedly trying to recruit Microsoft to help reinstate Altman. Furthermore, Altman has already been planning on launching a new venture, and Brockman will likely be involved. OpenAI’s board is in talks with Sam Altman to potentially reinstate him as CEO, suggesting that tensions continue to mount as the situation unfolds.