IPO filing: Anthropic routed 47% of its sales, or ~$2.16B, in 2025 through cloud partners Amazon and Google; analysis: it paid ~$351M back in distribution fees
Anthropic's IPO prospectus shows how much it depends on a small group of customers and tech giants, highlighting key risks …
Context & Ripple Effects
Anthropic’s prospectus pairs rapid revenue growth with a 2025 net loss of $42 billion and more than $8 billion in operating losses, making the economics of each sales channel material to an IPO audience. Its disclosed long-term AI-infrastructure commitments also make dependable cloud distribution strategically important, not merely a route to market.
The new disclosure puts a price on that dependence: Amazon and Google account for nearly half of Anthropic’s 2025 sales while also collecting distribution fees. That concentrates both customer access and a portion of the company’s gross-profit equation in two platform partners.
First-order effects
- Amazon and Google receive about $351 million in distribution fees tied to roughly $2.16 billion of Anthropic sales routed through their cloud channels, while Anthropic bears that cost as a reduction to the economics of those sales.
- Anthropic’s IPO investors can assess channel concentration alongside the company’s previously disclosed losses and two-customer revenue concentration.
Second-order effects
- Amazon and Google gain leverage in commercial negotiations because their marketplaces provide access to 47% of Anthropic’s reported 2025 sales as well as infrastructure capacity.
- Anthropic has a stronger incentive to expand routes to customers outside the two cloud partners if it wants to reduce the share of revenue exposed to their distribution terms.
Third-order effects
- The disclosure illustrates AI infrastructure platformization: cloud providers can capture value from both supplying compute and distributing model providers’ products.
- If leading model developers continue to rely on cloud marketplaces for customer access, independent AI vendors may face structurally lower margins and greater platform dependence even as their revenue grows.
The trend: AI model companies are becoming embedded in cloud platforms that monetize both the infrastructure underneath models and the customer channels above them.