Figures reported September 22, 2026, put Microsoft’s fiscal 2026 revenue from commercial arrangements with OpenAI at $24.1 billion. OpenAI reportedly owed Microsoft $6.0 billion as of June 30, 2026. The figures put a scale on Microsoft’s commercial exposure to OpenAI, alongside a partnership built around Azure services, ownership and technology rights.
Microsoft’s reported fiscal 2026 figures
The reported figures span Microsoft’s revenue from OpenAI-related commercial arrangements, OpenAI’s balance owed to Microsoft, and the scale of Azure and Microsoft’s wider business.
| Measure | Figure | Period and basis |
| Microsoft revenue from commercial arrangements with OpenAI | $24.1 billion | Microsoft fiscal 2026 |
| Amount OpenAI owed Microsoft | $6.0 billion | June 30, 2026 |
| OpenAI-related arrangements as a share of Azure revenue | Roughly one-quarter, estimated | Microsoft fiscal 2026 |
| Azure revenue | More than $100 billion; up 41% year over year | Microsoft fiscal 2026 |
| Microsoft total revenue | $331.8 billion; up 18% year over year | Microsoft fiscal 2026 |
| OpenAI-related arrangements as a share of Microsoft revenue | About 7% | Microsoft fiscal 2026 |
The estimated Azure share points to a concentrated relationship within the cloud business. Across Microsoft as a whole, the reported share was about 7% of fiscal 2026 revenue.
Azure, ownership and technology rights
Microsoft’s relationship with OpenAI extends beyond cloud sales. In its October 2025 announcement, Microsoft described an investment valued at about $135 billion, representing roughly 27% of OpenAI Group PBC on an as-converted diluted basis. The announcement also said OpenAI had agreed to purchase an additional $250 billion of Azure services.
Microsoft said its exclusive license to OpenAI intellectual property would extend through 2032, subject to the agreement’s conditions and safety provisions. The companies’ arrangement also allows OpenAI to use other cloud providers for some products and services. Microsoft continues to host and distribute OpenAI models while building out its own model lineup.
Microsoft’s MAI-Transcribe-1, MAI-Voice-1 and MAI-Image-2 models are offered through Foundry. That gives Microsoft additional in-house models alongside its ongoing OpenAI relationship; it does not mark an end to the partnership.
Where concentration could matter
Microsoft’s remaining performance obligations—contracted revenue that has not yet been recognized—reached $678 billion in fiscal 2026, up 84% year over year. Microsoft Chief Financial Officer Amy Hood said the backlog grew 25% excluding OpenAI.
If OpenAI slows its spending, the effects could reach Azure’s growth and Microsoft’s contracted backlog. That is a concentration risk, not a prediction that OpenAI will default or that Microsoft will take a specific loss.
