Elon Musk's SpaceX has made a significant investment of two billion dollars into his AI company xAI, joining a five billion dollar funding round. The deal increases financial ties among Musk's ventures, including the recent merger of xAI with X, valuing the company at 113 billion dollars. xAI's chatbot Grok now assists Starlink customer service, and Musk plans to integrate Grok into Tesla’s robots. SpaceX continues to invest heavily in the development of Starship, despite ongoing delays.