According to the Wall Street Journal, Elon Musk's SpaceX has agreed to invest $2.00 billion in his artificial intelligence company xAI, which is nearly half of the Grok chatbot maker's recent equity financing. Musk has repeatedly used his business empire to support the artificial intelligence startup, which is struggling to catch up with OpenAI. Earlier this year, he merged xAI with X, combining a small research lab with a social media platform to help expand the reach of its Grok chatbot. The merger valued the new company at $113.00 billion. [ChainCatcher]