AWS Bedrock drives 45% of Anthropic API ARR, per SemiAnalysis
zephyr_z9 · x · 2026-08-19
Per SemiAnalysis, AWS Bedrock accounts for roughly 45% of Anthropic's API ARR. The thread argues markets keep misreading the relationship between hyperscalers (Amazon, Microsoft, Google) and Anthropic/OpenAI as competition, when the clouds are actually critical infrastructure providers (75% of global compute) and demand creators with sales and implementation ecosystems for enterprise agentic apps.
SemiAnalysis details the deal structure: hyperscalers take an IaaS fee and/or revenue share while the lab acts as seller of record and books gross ARR. The same token spend produces different revenue and margin figures at the lab versus the cloud. Revenue share favors hyperscalers (Token-as-a-Service monetizes above IaaS), but the incremental share going to clouds ultimately hurts lab EBIT margins, booked under Sales & Marketing. Compute follows the same logic: indirect workloads run on hyperscaler MWs while serving lab models, so capacity allocation requires deal-level detail.
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