Microsoft and OpenAI End Azure Exclusivity in Partnership Overhaul

Overview

Microsoft and OpenAI announced a major restructuring of their partnership on April 27, 2026, formally ending the Azure exclusivity arrangement that had defined their relationship since 2022. Under the new terms, OpenAI is free to offer its products through any cloud provider, while Microsoft retains first-call status and major shareholder position.

Key Changes

• End of exclusivity: OpenAI can now serve all its products to customers on any cloud platform. Microsoft remains the primary partner; OpenAI products ship first on Azure unless Microsoft cannot support the required capabilities.
• Revenue share: Microsoft will stop paying its revenue share to OpenAI. Payments from OpenAI to Microsoft continue through 2030 at the same percentage, but are now subject to a total cap.
• Licensing: Microsoft's license to OpenAI IP for models and products remains valid through 2032, converting to a non-exclusive arrangement.
• Shareholder status: Microsoft continues to participate directly in OpenAI's growth as a major shareholder.

Background

The restructure was triggered in February 2026, when Amazon committed up to $50 billion to OpenAI with a condition that AWS would have exclusive rights to serve OpenAI's new agent-building tool, Frontier. This directly conflicted with OpenAI's existing Azure exclusivity, forcing a negotiated resolution.

What Comes Next

The day after the announcement, on April 28, OpenAI models became available on Amazon Bedrock, marking the first practical rollout of multi-cloud deployment. OpenAI's platform strategy is now decoupled from any single cloud provider.

Source: Microsoft Blog, OpenAI