Anthropic is broadening access to Claude, its AI model, by providing Microsoft Azure enterprise customers with an expanded model choice and new features.
The company has committed to purchase $30 billion of Azure compute capacity and to contract additional compute capacity up to 1GW.
Customers of Microsoft Foundry will be able to access Anthropic’s Claude models including Claude Sonnet 4.5, Claude Opus 4.1, and Claude Haiku 4.5, making Claude the only frontier model available on the most prominent Cloud services in the market.
Microsoft has also committed to continuing access for Claude across Microsoft’s Copilot family, including GitHub Copilot, Microsoft 365 Copilot, and Copilot Studio.
Anthropic recently completed a Series F funding round totalling $13 billion. Anthropic has experienced rapid expansion following the release of Claude in March 2023. By the start of 2025 – less than two years after launch – its run-rate revenue had reached around $1 billion. By August 2025 that figure exceeded $5 billion, which placed Anthropic among the fastest-growing technology companies in history.
“From Fortune 500 companies to AI-native startups, our customers rely on Anthropic’s frontier models and platform products for their most important, mission-critical work,” said Krishna Rao, Chief Financial Officer of Anthropic. “We are seeing exponential growth in demand across our entire customer base. This financing demonstrates investors’ extraordinary confidence in our financial performance and the strength of their collaboration with us to continue fuelling our unprecedented growth.”
Alongside its partnerships with Microsoft, Anthropic and NVIDIA are collaborating to optimise Anthropic models for ultimate performance, efficiency, and TCO as well as optimising future NVIDIA architectures for Anthropic workloads. The company’s initial commitment will be up to 1GW of compute capacity with NVIDIA Grace Blackwell and Vera Rubin systems.
All told, NVIDIA and Microsoft are investing up to $15 billion in Anthropic.
Amazon also recently confirmed its plans to invest up to $4 billion in the company. Amazon will initially be putting in a stake of $1.25 billion and will raise the stake to $4 billion over time. Part of the deal also means that Anthropic will be deploying Amazon’s AWS custom chips to develop its AI software, as well as using AWS as its primary Cloud provider.
