Blastoff! Elon Musk's SpaceX went public Thursday evening and raised a stunning $75 billion, easily an all-time record. The IPO is just the first of the triumvirate of AI leaders - yes, SpaceX owns xAI, surely a large part of SpaceX's valuation. OpenAI filed confidentially for its IPO as it promised its "superapp" is coming, following Anthropic's lead last week. OpenAI's offering could come as early as later this year, while Anthropic's timing sounds even less certain.