Microsoft and Nvidia have announced plans to invest $15 billion in AI start-up Anthropic.

Nvidia will spend up to $10 billion on the company, while Microsoft has committed to a $5 billion investment.

The plans form part of a set of wider strategic partnerships between the three businesses.

As part of the move, Anthropic will also buy $30 billion of Microsoft Azure compute capacity.

The plans will see the AI company scale its Claude AI model on Microsoft Azure, powered by Nvidia, broadening access to the technology and providing Azure enterprise customers with expanded model choice and new capabilities.

For the first time, Anthropic will also establish a "deep technology partnership" with Nvidia to support its future growth.

The two businesses will collaborate on design and engineering, with the goal of optimising Anthropic models for the best possible performance, efficiency, and TCO, and optimising future Nvidia architectures for Anthropic workloads.

Anthropic’s compute commitment will initially be up to one gigawatt of compute capacity with Nvidia Grace Blackwell and Vera Rubin systems.

Additionally, Microsoft and Anthropic are expanding their existing partnership to provide broader access to Claude for businesses.

Customers of Microsoft Foundry will be able to access Anthropic’s frontier Claude models including Claude Sonnet 4.5, Claude Opus 4.1, and Claude Haiku 4.5.

This companies said that this will make Claude the only frontier model available on all three of the world’s most prominent cloud services.

Microsoft has also committed to continuing access for Claude across Microsoft’s Copilot family, including GitHub Copilot, Microsoft 365 Copilot, and Copilot Studio.

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