Microsoft's AI Revenue Is Mostly OpenAI

From Microsoft's fiscal 2026 annual report, filed under Accounting Standards Codification Topic 850, which governs disclosure of transactions with related parties. OpenAI qualifies as one because Microsoft accounts for it as an equity method investee. The filing states that for fiscal year 2026 Microsoft recorded revenue from commercial arrangements with OpenAI, inclusive of revenue-sharing payments, of $24.1 billion, and that accounts receivable from OpenAI as of June 30, 2026 was $6.0 billion. It further states that Microsoft has made total funding commitments of $13.0 billion related to its investment, of which $11.9 billion had been funded as of that date. Satya Nadella said at the end of the March quarter that Microsoft was on pace to record roughly $37 billion in AI revenue over a full year. Microsoft did not update that total when it reported fiscal fourth-quarter results. https://www.bloomberg.com/news/articles/2026-08-05/microsoft-s-ai-sales-mostly-come-from-openai-disclosures-show

The hyperscaler complex split one-to-three on free cash flow this quarter. Amazon ran negative $7.6 billion on a trailing basis, Alphabet negative $5.86 billion, Meta positive $784 million after a 91% collapse. Microsoft was the only clean positive. That made Microsoft the load-bearing case for the proposition that AI capital expenditure produces returns rather than just depreciation. The filing says roughly two-thirds of Microsoft's AI revenue came from a single customer that Microsoft capitalized. Microsoft put $11.9 billion in, holds 27% of the equity, and books revenue when that customer buys Azure capacity. Six billion dollars of the revenue booked has not been collected, against an entity that does not generate free cash flow. That is not fraud and it is not hidden — it is disclosed precisely because accounting rules require related-party transactions to be visible. What it means is that the cleanest evidence in the market for AI monetization is substantially a transaction between an investor and the company it invested in. The pattern is not new but the scale is. Nvidia holds a stake in Nebius, which buys Nvidia GPUs. AMD attached equity to compute commitments. Anthropic's Texas campus deploys chips financed by the chip supplier under an arrangement its own largest investor backstops. Credit markets have started pricing it: Nvidia's five-year CDS doubled to a record 80 basis points in July on cumulative vendor-financing exposure. Microsoft's version is the largest, and the only one visible in a 10-K under related-party rules. The counterweight deserves stating because it is real and it limits the claim. Microsoft's commercial remaining performance obligations jumped 84% to $678 billion and still rose 25% excluding OpenAI. Commercial bookings grew 18% excluding OpenAI against 10% including OpenAI's Azure commitments — the non-OpenAI business grew faster. Nearly 90% of full-year cloud revenue came from customers outside frontier-model companies, and Azure crossed $100 billion in annual revenue growing 41%. Microsoft Cloud is broad and healthy. Microsoft's AI revenue specifically is concentrated. Those two things are both true, and conflating them is how the bull case gets overstated in either direction. What it changes is what the number proves. Twenty-four billion dollars of related-party revenue does not demonstrate that enterprises are paying for AI. It demonstrates that one well-capitalized lab is paying for compute with money raised from the entity selling it. The proposition still needing evidence is whether the other third scales without a sponsor attached.