OpenAI gains multi-cloud freedom in new Microsoft deal

On Monday, OpenAI and Microsoft announced they have renegotiated their partnership agreement. The new terms resolve the legal peril Microsoft posed regarding OpenAI’s deal with Amazon. Under the updated contract, OpenAI can now serve all its products to customers across any cloud provider, representing a significant shift in how the two companies operate together.

The renegotiated agreement establishes a definitive timeline, granting Microsoft a nonexclusive license to OpenAI IP for models and products through 2032. While Microsoft remains a major shareholder in OpenAI, owning about 27% of the for-profit entity, the partnership now operates under a restructured financial and operational framework.

Key financial figures under the agreements include:

• Up to $50 billion: Amazon’s total planned investment in OpenAI, consisting of a $15 billion initial investment and a $35 billion future investment.
• $250 billion: The value of the additional cloud purchase OpenAI agreed to buy from Microsoft in October.
• $38 billion: The value of the multi-year contract OpenAI signed with Amazon in November for AWS cloud services.
• $7.5 billion: Microsoft’s quarterly revenue generated from its OpenAI investment, as reported last quarter.

The updated terms resolve a major point of friction: Microsoft could sue OpenAI over the AI lab’s deal with Amazon. In February, Amazon announced its investment in OpenAI, which involved co-developing stateful runtime technology (technology supporting AI agents to remember tasks and contexts) on AWS Bedrock (Amazon’s AI model hosting service). The deal also promised AWS exclusive rights to host Frontier, OpenAI’s agent-making tool. However, Microsoft publicly refuted these terms, asserting that Azure (Microsoft’s cloud platform) remains the exclusive cloud provider of stateless OpenAI APIs and that first-party products like Frontier would continue to be hosted on Azure. The Financial Times reported in March that Microsoft was considering legal action if it had to enforce its contract terms. Additionally, the renegotiation follows an agreement in October to help OpenAI defend against a lawsuit from Elon Musk about its corporate structure.

Despite the shift to a multi-cloud model, Microsoft remains OpenAI’s primary cloud partner. The companies stated that “OpenAI can now serve all its products to customers across any cloud provider.” However, Microsoft maintains its exclusive license and access to intellectual property across OpenAI models and products, and Azure remains the exclusive cloud provider of stateless OpenAI APIs. Any stateless API calls resulting from collaborations with third parties, including Amazon, will still be hosted on Azure.

Why it matters

The new agreement eliminates Microsoft’s exclusive rights and resolves the legal risks surrounding the Amazon partnership. This allows OpenAI to serve its products across any cloud provider while maintaining Microsoft as its primary cloud partner.