Amazon puts $5B into Anthropic, locks $100B AWS deal

On April 20, 2026, Amazon invested $5 billion in Anthropic and secured a pledge from the AI company to spend more than $100 billion on Amazon Web Services over the next ten years. The agreement includes commitments that cover current and future generations of AWS Trainium and Graviton chips and guarantees up to 5 gigawatts of compute capacity for training and running Claude models.

The new investment brings Amazon’s total committed capital in Anthropic to $13 billion since 2023, with provisions that could add up to $20 billion more if commercial milestones are met. Amazon will remain a minority investor in Anthropic. Anthropic’s commitment to AWS covers large purchases, including tens of millions of Graviton cores, and locks in the stated compute levels for model development and deployment.

Amazon said significant Trainium2 capacity will be available in the second quarter of 2026 and that nearly 1 GW of combined Trainium2 and Trainium3 capacity is expected by year-end. The companies plan to expand Project Rainier, a large-scale cluster built around roughly 500,000 Trainium2 chips, as part of the arrangement.

Under the agreement, AWS will continue as Anthropic’s primary provider for mission-critical training and cloud services. The full Claude Platform console is now accessible inside the AWS console so customers can manage Claude through existing AWS accounts, controls and billing. Claude models remain available across AWS Bedrock, Google Cloud Vertex AI and Microsoft Azure Foundry. More than 100,000 customers run Claude models on Amazon Bedrock.

Anthropic reported rapid revenue growth ahead of the deal. Claude’s run-rate revenue reached about $30 billion in 2026, up from roughly $9 billion at the end of 2025, driven by enterprise, developer and consumer adoption across the company’s free, Pro, Max and Team tiers. Customer examples cited by Anthropic include Lyft, which reported an 87% improvement in customer service resolution speed, and Pfizer, which reported a 55% reduction in infrastructure costs and about 16,000 search hours saved per year.

The financing follows a recent wave of large private funding rounds for AI labs. From mid-February to mid-April 2026, Anthropic and OpenAI together raised more than $150 billion in private capital, reflecting high demand for data-center capacity, custom chips and energy for large-scale model training.

Andy Jassy, Amazon’s chief executive, credited the performance and cost profile of the company’s custom silicon for Anthropic’s commitment to run models on AWS Trainium. Dario Amodei, Anthropic’s chief executive and co-founder, noted that customers have made Claude central to their workflows and that the company must scale infrastructure to meet growing demand; he added the collaboration with Amazon will allow Anthropic to continue research while delivering Claude to its customers.

The agreement ties long-term compute capacity to Anthropic’s commercial commitments and secures a decade-long revenue stream for AWS while allowing Anthropic to continue operating across multiple cloud platforms and pursue further capital tied to milestones.