A Microsoft filing shows the company booked $24.1 billion in revenue from OpenAI during the fiscal year ending in June, representing about 70 percent of Microsoft’s AI business. Much of that revenue reflects OpenAI’s own cloud-computing costs routed through Azure rather than new third-party sales growth. Microsoft has spent more than $260 billion since 2022 on efforts to diversify its AI partnerships, but the filing underscores the company’s continued reliance on OpenAI for a majority of its AI-related revenue.
