Microsoft partners with Anthropic to offer Claude models on Azure

In short: Microsoft and Anthropic have announced a strategic partnership that puts Anthropic’s Claude AI models inside more Microsoft products and services.

What happened

Microsoft and Anthropic said they will work more closely across cloud services and AI products. A central part of the deal is that Anthropic will buy about $30 billion worth of Microsoft Azure computing power over time. Azure is Microsoft’s network of rented computers in data centers, like paying for electricity and machines you do not own.

Microsoft also said customers using Microsoft Foundry can now access several Claude models, including Claude Sonnet 4.5, Claude Opus 4.1, and Claude Haiku 4.5. “Model” here means the AI system that writes and answers questions, like choosing between different engines in a car.

Claude will also remain available across Microsoft’s Copilot products, including GitHub Copilot, Microsoft 365 Copilot, and Copilot Studio. Copilot is Microsoft’s AI helper built into tools people already use, such as coding and office work.

On funding, NVIDIA said it will commit up to $10 billion to Anthropic, and Microsoft up to $5 billion. NVIDIA and Anthropic also plan to work on improving how Claude runs on NVIDIA hardware, aiming to get better speed and lower cost.

Why it matters

For companies and schools that rely on Microsoft software, this makes it easier to pick which AI assistant to use inside the same Microsoft setup. It also shows Microsoft is betting on “model choice,” even as it continues a much larger relationship with OpenAI. For regular users, the practical impact is more AI options inside familiar Microsoft tools, with major tech firms competing to be the default assistant.

Source: Financial Times