One by one, the founding team of xAI is leaving the artificial intelligence company as Elon Musk pushes for a complete reorganization. The departures are part of bigger changes in recent weeks that have shrunk the original team that helped Musk launch the creator of the Grok chatbot. The shakeup comes just over a month after Musk merged xAI into his rocket company SpaceX in a deal that valued xAI at $250 billion.