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Microsoft holds 27% of OpenAI in revamped partnership

In the deal, Microsoft’s intellectual rights for both OpenAI’s models and products are extended through 2032

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Open AI CEO Sam Altman speaks during the Snowflake Summit in San Francisco, on June 2, 2025. Photo: Getty Images/TNS

Microsoft and OpenAI announced Tuesday a sweeping overhaul of their landmark artificial intelligence partnership, giving both companies greater independence while maintaining their close collaboration.

Microsoft will hold approximately 27 per cent of the restructured OpenAI, an investment valued at roughly US$135 billion, as the ChatGPT maker transitions to a public benefit corporation structure, according to a blog post on the OpenAI website.

OpenAI has also committed to purchasing US$250 billion in Azure cloud services from the tech giant, though Microsoft no longer holds first refusal rights as OpenAI’s compute provider.

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In the deal, Microsoft’s intellectual rights for both OpenAI’s models and products are extended through 2032.

“As we enter the next phase of this partnership, we’ve signed a new definitive agreement that builds on our foundation, strengthens our partnership, and sets the stage for long-term success for both organizations,” the companies said in a joint statement.

Microsoft signage at its corporate offices in Mountain View, California, October 28, 2025. Photo: EPA
Microsoft signage at its corporate offices in Mountain View, California, October 28, 2025. Photo: EPA

Regulators have signed off on the arrangement, according to the companies.

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