"(Neither the startup nor the people in Redmond have publicly confirmed this percentage.) However, this is where things get a little sticky because Microsoft also shares revenue with OpenAI, kickingbackabout 20% of the revenues from Bing and Azure OpenAI Service, a source familiar with the matter told TechCrunch. Bing is powered by OpenAI, and the OpenAI Service sells cloud access to OpenAI's models to developers and businesses."
"Bing is powered by OpenAI, and the OpenAI Service sells cloud access to OpenAI's models to developers and businesses. The source also told TechCrunch that the leaked payments refer to Microsoft's net revenue share, not the gross revenue share. In other words, they don't include whatever Microsoft paid to OpenAI from Bing and Azure OpenAI royalties. Microsoft deducts those figures from its internally reported revenue share numbers, according to this person."
Leaked documents show Microsoft received $493.8 million in revenue share payments from OpenAI in 2024 and $865.8 million in the first three quarters of 2025. OpenAI reportedly shares 20% of its revenue with Microsoft under a prior investment deal that exceeded $13 billion. Microsoft also pays OpenAI royalties from Bing and the Azure OpenAI Service and reportedly kicks back about 20% of those revenues to OpenAI. The leaked payments appear to reflect Microsoft's net revenue share rather than gross figures, excluding amounts Microsoft paid to OpenAI. Microsoft does not break out Bing and Azure OpenAI revenue in its financial statements. The documents also reveal OpenAI's revenue and compute cost comparisons, allowing revenue inferences.
Read at TechCrunch
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