Linda Yaccarino, who has served as CEO of X since Elon Musk appointed her to the role in June 2023, announced Wednesday that she is stepping down. Her departure comes less than four months after Musk announced that X would be absorbed into xAI, the billionaire’s existing artificial intelligence startup. “Now, the best is yet to come as X enters a new chapter with @xai,” Yaccarino wrote. Yaccarino joined X in 2023, less than a year after Musk acquired what was then known as Twitter and assumed the role of CEO. Prior to joining X, Yaccarino was the head of advertising and chair of global advertising and partnerships at NBCUniversal.