Amazon commits up to $25B to Anthropic in $100B cloud deal

Amazon has agreed to invest up to $25 billion in AI company Anthropic as part of an expanded agreement that locks in more than $100 billion of cloud spending by Anthropic on Amazon Web Services over the next decade. The deal includes an immediate investment of $5 billion, with up to $20 billion more tied to commercial milestones. This is in addition to the $8 billion Amazon had already committed to Anthropic since 2023, bringing total potential Amazon investment to approximately $33 billion. Simultaneously, Anthropic has committed to spending $100 billion on AWS cloud compute, custom AI chips, and infrastructure services over ten years. This follows a similar structure used two months ago when Amazon invested $50 billion in OpenAI as part of a comparable $100 billion cloud commitment. The agreement centers on Amazon's Trainium chip line, its in-house alternative to Nvidia GPUs for AI training and inference. The deal covers current Trainium2 chips, the forthcoming Trainium3, and the not-yet-released Trainium4, along with tens of millions of Graviton CPU cores. Anthropic secures up to 5 gigawatts of compute capacity to train and deploy its Claude models under the deal. Amazon said that significant Trainium2 capacity is coming online in the second quarter of 2026, with nearly one gigawatt of combined Trainium2 and Trainium3 expected by year-end. The compute commitment responds to Anthropic's rapidly growing demand: the company's annualized revenue has reached $30 billion, up from approximately $9 billion at the end of 2025. AWS customers will now be able to access the full Claude Platform directly through their existing AWS accounts without separate credentials or billing. Claude remains the only frontier AI model available across all three major cloud platforms: AWS Bedrock, Google Cloud Vertex AI, and Microsoft Azure Foundry. The deal comes as Anthropic navigates a complex geopolitical environment. The company is currently barred from Department of Defense contracts following a supply-chain risk designation it is contesting in court. In November 2025, Microsoft invested up to $5 billion in Anthropic as part of a separate deal involving $30 billion of Azure compute capacity. The AWS arrangement significantly dwarfs that previous commitment and establishes Amazon as Anthropic's primary infrastructure partner.