Saudi Arabia-backed AI company Humain has invested $3 billion in Elon Musk's AI startup xAI, becoming a significant minority shareholder. This investment comes ahead of SpaceX's acquisition of xAI, with Humain's shares set to convert into SpaceX shares. The move strengthens the relationship between Musk and Humain, aligning with Humain's goal to position Saudi Arabia as a leader in artificial intelligence. Additionally, the companies plan to develop a 500-megawatt data center in Saudi Arabia.