SpaceXAI, formerly xAI, is an American artificial intelligence company founded by Elon Musk. It is a subsidiary of SpaceX and develops frontier AI models for reasoning, code, voice, images, and video. Its core product is Grok, an AI chatbot available for individuals, businesses, and governments, with models trained on the world's largest supercluster. SpaceXAI also offers a unified platform for AI development and operates a data center business centered on its Colossus cluster.