Anthropic Plans to Spend $518 Billion on Cloud and Data Centers. More Than $100 Billion Is Already Promised to Amazon.

Anthropic's draft IPO prospectus puts planned cloud and infrastructure spending at $518 billion over the coming years, with $110 billion already committed to Amazon Web Services through 2036. That makes AMZN the most visible named beneficiary in the filing's disclosed commitments.

The spending plan sits against heavy operating losses, but the revenue trajectory is steep: Anthropic's revenue grew 14-fold year-over-year in Q2 2026. That growth rate is the core reason the AWS commitment looks manageable, per the source's framing.

The risk side is customer concentration. Nearly 25% of Anthropic's 2025 revenue came from just two customers, and those customers lack long-term contracts. Interpretation: the $110 billion AWS obligation is fixed through 2036, while the revenue funding it rests partly on relationships that can walk. That mismatch is the pressure point if growth decelerates from a 14x pace.

The $518 billion total implies roughly $408 billion in commitments beyond AWS. The filing excerpt does not name other counterparties, so read-through to MSFT, GOOG, GOOGL, GOOGM, GOOGN or AVGO remains an open question rather than a confirmed link.