Elon Musk's companies, Tesla and xAI, are estimated to spend $10 billion on AI compute capacity in 2024.Tesla has deployed a 29,000 unit Nvidia H100 cluster for training, with plans to have 85,000 H100 equivalent capacity by December.xAI has assembled the Memphis supercomputer, running on 100,000 Nvidia's H100 GPUs, aiming to build the world's most powerful AI by December.While Musk's efforts are falling behind deep-pocketed rivals, such as Microsoft and OpenAI, who are also investing heavily in AI compute capabilities.