Microsoft recorded about $10 billion of revenue from its commercial arrangements with OpenAI in the quarter to 30 September, TechCrunch reports, citing the company’s SEC filing. That is nearly 11% of the $92.3 billion total for the quarter. For the whole of fiscal 2026 the figure was $24.1 billion.
TechCrunch separately counts it as Microsoft’s tenth straight quarter of record revenue. Put another way, roughly one dollar in nine this quarter traces to a single customer that is also a shareholder.
At the latest pace the line would reach about $40 billion a year, but that is TechCrunch’s extrapolation from a single quarter, not a Microsoft figure.
The filing does not split the $10 billion between revenue-sharing payments and Azure cloud services. TechCrunch has asked Microsoft for detail.
OpenAI also owed Microsoft $7.2 billion at the end of September, up from $6 billion in June. That is money owed for earlier transactions, not extra revenue.
Microsoft’s stake in OpenAI fell from about 25% in June to 24% in September, having been roughly 27% after the October 2025 recapitalisation. Microsoft did not say what caused the dilution.
Some of the terms behind the number are known. Under an April 2026 agreement OpenAI keeps sharing revenue with Microsoft through 2030, subject to a cap, and can use rival clouds. A 20% share rate has been reported, but neither company has confirmed it.
Until Microsoft separates cloud sales from revenue share, the figure cannot say whether OpenAI is mostly a customer or mostly a partner.
