Leaked files expose OpenAI’s huge payments to Microsoft

OpenAI has come under fresh attention after leaked documents revealed new details about its income, spending and its financial relationship with Microsoft. The documents, obtained by tech blogger Ed Zitron, outline OpenAI’s revenue figures and the cost of running its models over the past two years.

Zitron said that Microsoft received $493.8 million from OpenAI in 2024 through revenue sharing. In the first three quarters of 2025, this amount rose to $865.8 million. According to unnamed sources quoted by TechCrunch, OpenAI gives Microsoft 20%t of its…