Microsoft Books $24.1B Revenue from OpenAI, 70% of Its AI Sales

Graham_dePenros · x · 2026-08-11

Microsoft recorded $24.1 billion in revenue from OpenAI in the fiscal year ending June, representing about 70% of its total AI sales, per Bloomberg. Most comes from OpenAI using Azure cloud. Microsoft also has roughly $281 billion in contracted business with OpenAI. Though small as a percentage of Microsoft's revenue, it's the largest contributor to its fastest-growing unit, making it fragile due to single-customer dependence.

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