Microsoft records a new record on Wall Street with the arrival of OpenAI co-founder and former number one Sam Altman. The company rose 1.6% in early trading and is now trading around 1% after the latest twist in the world of artificial intelligence.

Microsoft has announced the hiring of Sam Altman, co-founder and former number one of OpenAI, who was dismissed from his position last Friday. Shortly after, Emmett Shear announced that he had accepted the position as OpenAI’s interim number one.

Sam Altman and Greg Brockman, both co-founders of OpenAI, will join Microsoft to lead a new artificial intelligence research team, according to CEO Satya Nadella. This move comes after a tumultuous weekend at OpenAI, where Sam Altman was fired following a review process by the board of directors who concluded that he was not always blunt in his communications.

Nadella reiterated the company’s commitment to its partnership with OpenAI and expressed confidence in the roadmap they have established for their product. Meanwhile, Emmett Shear plans to launch an independent investigation within 30 days to shed light on Sam Altman’s firing and the upheaval within the start-up.