Anthropic Growth and Bedrock Mix Drive AWS Margins Higher While Peers Lag Amazon’s Bedrock Mix and Anthropic Deal Terms …
SemiAnalysis Twitter · SemiAnalysis (@SemiAnalysis_) · 2026-05-27
SemiAnalysis analysis finds AWS operating margins rose 213 basis points quarter-over-quarter in Q1 2026, driven primarily by surging Anthropic Claude API revenue through Amazon Bedrock, while Azure, Oracle, and CoreWeave saw flat or declining margins.
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Topics: awscloud-economicsanthropicamazon-bedrockcloud-margins
Claims
- AWS operating margins increased 213bp Q/Q in Q1 2026, outperforming all other major cloud service providers.
- Growth in Anthropic's Claude API usage through Amazon Bedrock was the primary driver of AWS margin improvement.
- Amazon is the only cloud provider with token-as-a-service as the dominant share of its AI business, giving it structurally better margin economics than IaaS-focused rivals.
- Google Cloud's reported margins are inflated because DeepMind training costs are not included in the GCP segment.
- AWS will deploy more AI compute capacity than any other cloud provider in 2025, 2026, and 2027 according to SemiAnalysis's Datacenter Industry Model.
Key quotes
AWS margins inflected this past quarter driven primarily by customer spending growth on Claude through Bedrock.
Amazon is the only CSP with token-as-a-service being the dominant share of its AI business, while all others are focused on multi-year IaaS deals.
No other provider will build more capacity than AWS in 2025, 2026 and 2027, as per our Datacenter Industry Model. AWS dwarfs rivals.