Microsoft’s $10 billion quarter from OpenAI leaves the mix unclear

Revenue, not cash owed

For fiscal 2026, Microsoft’s revenue from OpenAI totaled $24.1 billion. At the latest quarterly pace, the annualized figure would reach $40 billion.

A separate balance-sheet number should not be added to that revenue: at the end of September, Microsoft had $7.2 billion in outstanding receivables from OpenAI, up from $6 billion at the end of June. That is money owed for past deals, not additional income.

The mix behind the $10 billion is still unclear. TechCrunch asked Microsoft for more detail. In November 2025, the publication reported, citing leaked documents, that Microsoft had received $865.8 million in net revenue-share payments from OpenAI during the first nine months of that year.

A partnership with more room to move

Media reports say the earlier agreement gave Microsoft 20% of OpenAI’s revenue. Neither company has publicly confirmed that share. Microsoft had invested more than $13 billion in the AI startup.

An agreement in April 2026 requires OpenAI to keep sharing revenue with Microsoft through 2030, subject to a cap. It also gives OpenAI the right to work with competing cloud providers. That follows a broader loosening of the companies’ once-exclusive partnership:

Microsoft’s stake in OpenAI has also edged down, from about 25% in June to 24% in September. The decline continues a dilution trend that began after the October 2025 recapitalization, when Microsoft held about 27%. Microsoft has not said what caused the latest dilution.

The missing breakdown

I think the headline number is less revealing than the absent one: how much of Microsoft’s OpenAI revenue is recurring cloud business, and how much is a contractual share of OpenAI’s own sales? Those streams would mean different things for the durability of the relationship.

The companies have loosened exclusivity while preserving substantial financial ties: OpenAI still owes Microsoft revenue sharing through 2030 and has committed to a huge Azure purchase. The $10 billion shows how valuable the partnership remains; without a breakdown, it does not show how much of that value depends on OpenAI staying close to Microsoft.