The Cloud Providers Carved Up the AI Labs. Now Comes the IPO.
The number in Amazon first-quarter earnings was real: 16.8 billion dollars in pre-tax gains from Anthropic, flowing straight into net income, responsible for more than half of Amazon profit. The number in the footnotes was also real, and more important: Amazon holds 74.2 billion dollars of Anthropic in nonvoting instruments, a stake that started as 8 billion dollars. SEC Filing
Both things can be true at once. Amazon made a genuine bet on an AI lab, and that bet is now worth nine times what Amazon paid. The gains are real enough to show up in SEC filings. They are also, by their nature, temporary: mark-to-market paper profits evaporate if the next valuation round goes sideways, or if Anthropic IPO disappoints public investors, or if the FASB rule that allows this treatment gets revisited.
But the more durable story is not Amazon balance sheet. It is what Amazon balance sheet reveals about the structure of the AI industry.
Microsoft owns 27 percent of OpenAI. Google holds 14 percent of Anthropic, a stake capped by regulatory constraint, with no board seat and no voting rights. Amazon holds the largest piece of Anthropic, but only in nonvoting form. Three cloud providers carved up the compute layer of the three most prominent AI labs, and the carve-up happened quietly, through preferred stock and convertible notes, outside the regulatory review that would apply to outright acquisitions.
Anthropic filed a confidential S-1 with the SEC on June 1, moving toward a public offering at a 965 billion dollar valuation, the result of a 65 billion dollar Series H round completed days earlier. Anthropic Blog When an AI lab goes public, its largest shareholder is a cloud provider that also sells it compute. The conflict-of-interest is structural, not incidental, and the public markets will have to price it.
The accounting gain in Amazon Q1 results is the news peg. The structural question is who controls the infrastructure layer of AI, and whether that control is the kind of thing antitrust regulators are equipped to notice before the market has already decided.
Amazon declined to comment beyond its earnings filing. Anthropic declined to comment on its S-1 filing. Microsoft press office did not respond by publication.