Anthropic and Cursor Spend This Much on Amazon Web Services (www.wheresyoured.at)

Reporting based on insider billing data reveals that Anthropic paid $1.359 billion to Amazon Web Services (AWS) in 2024 and $2.66 billion to AWS through September 2025 — amounts verified as final cash paid after discounts. Those 2025 AWS costs alone exceed Anthropic’s estimated revenue through September (~$2.55B), meaning AWS bills consumed ≈104% of reported revenue. The 2024 AWS bill already represented roughly 226% of an estimated $600M 2024 revenue. The numbers include all AWS products (EC2, storage, databases, etc.). The piece also discloses that Cursor, an AI coding shop that relies heavily on Anthropic for compute, saw its AWS bills jump from $6.2M in May 2025 to $12.6M in June 2025 — a strain linked to Anthropic’s introduction of paid Priority Service Tiers and broader industry price shifts. For the AI/ML community, these figures spotlight that cloud compute is now the dominant line item and may be far larger than public estimates once multi-cloud (AWS + Google Cloud) spend and undisclosed revenue-share deals are counted. Anthropic’s AWS bill being comparable to its stated training costs implies additional multi-cloud training/inference spending could be in the billions, undermining unit economics for model providers and downstream customers. Practically, this raises sustainability questions for frontier model development, accelerates pressure for cheaper accelerators, long-term supplier negotiations or vertical integration, and explains why price tiers and rent-seeking behaviors (the so-called “Subprime AI Crisis”) are emerging across the ecosystem.