OpenAI business accounts for 11% of Microsoft’s quarterly revenue
Microsoft disclosed quarterly revenue from its OpenAI arrangements for the first time, while reducing its 2026 capital spending forecast.
Microsoft reported US$10.0 billion in revenue from commercial dealings with OpenAI for the quarter ended September 30, 2026, accounting for about 11% of its total. The disclosure appeared in the company’s quarterly filing.
The figure includes revenue-sharing payments, but Microsoft did not disclose how much came from those payments versus OpenAI’s purchases of Azure cloud services. GeekWire reported that Microsoft had not previously disclosed a quarterly total for the arrangement.
The filing also showed that OpenAI owed Microsoft US$7.2 billion at September’s end, compared with US$6.0 billion in June. Microsoft owns about 24% of OpenAI and has contributed US$12.0 billion toward its US$13.0 billion investment commitment.
Alongside the revenue disclosure, chief financial officer Amy Hood lowered Microsoft’s 2026 capital spending forecast from US$175 billion to US$170 billion, Business Insider reported. Hood attributed the change to some contracts with outside computing-capacity providers shifting into the fiscal year’s second half.
Quarterly capital spending, including finance leases, reached US$45.2 billion, CNBC reported, below the company’s US$50 billion projection cited by Reuters. Investor relations chief Jonathan Neilson said delays explained the shortfall, rather than a revision to spending plans, according to Reuters.
The OpenAI partnership has meanwhile become less restrictive. An April 2026 agreement expanded OpenAI’s ability to use competing cloud providers. TechCrunch reported that revenue sharing with Microsoft would continue through 2030, subject to a cap.
