Anthropic’s IPO Sells an AI Miracle While Its Bills Keep Rising
Anthropic’s IPO Sells an AI Miracle While Its Bills Keep Rising
Anthropic took the first formal step toward public markets in June, when it confidentially submitted a draft S-1 to the Securities and Exchange Commission. On Monday, it opened the books with a public prospectus exceeding 300 pages — a rare look inside a pure-play AI lab whose sales have raced ahead of almost every conventional corporate benchmark.
The financial case is formidable. Revenue climbed from $4.7 billion in the first quarter of 2026 to $11.6 billion in the second, helping Anthropic post its first operating profit; by the end of June, it held more cash than all but Google and Berkshire Hathaway among non-bank companies. Yet the third-quarter figure of $16.8 billion, while enormous, represented a clear deceleration in sequential growth.
That slowdown is central to the more cautious reading of the filing. Analysts cited by CNBC questioned how much each additional dollar of revenue will cost as computing demand rises, and whether Anthropic can keep revenue growing fast enough to meet expectations. The prospectus says the company has historically operated in a compute-constrained environment, with demand exceeding available supply.
The stakes are amplified by commitments running into the hundreds of billions of dollars for computing capacity from partners including Amazon, Google, SpaceXAI and Broadcom. The bullish case is that Claude and other products keep expanding rapidly enough to cover that outlay. The bearish one is that demand approaches saturation before those obligations do.
Anthropic has also made the prospectus an ideological pitch. Its founders urged investors not to view a share purchase “in purely transactional terms,” calling it an opportunity to join something greater, even as the filing warns advanced AI could pose “catastrophic or existential risks to humanity.”
Finally, public investors will be buying into a company designed to retain founder control: seven co-founders hold special voting power through a Class F share worth 50.1% of shareholder votes. Whether the market accepts that bargain — and what valuation it assigns — will not be known until trading begins.
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