The Download: Anthropic's IPO, smarter power grids, and exercise pills

Plus: Anthropic's listing could determine the future of the AI investment boom. Will the real Anthropic please stand up? After weeks of frenzied speculation, Anthropic has filed its IPO prospectus. The 335-page document (100 pages or so are focused on risks) lays out the company's unique view of the technology it is building and how it believes it will change the world. But Anthropic has been honing its storytelling skills for years. Its public messaging is a master class in narrative capture, presenting it as different things to different people: an AI safety organization, a profit-driven megacorp, and a group hell-bent on creating superhuman technology.