Microsoft and OpenAI Sign $135 Billion Agreement: Ushering in a New Era for AI Collaboration

Microsoft and OpenAI Forge $135 Billion Agreement: Expanding the AI Frontier

Microsoft and OpenAI have just announced a major new phase in their groundbreaking partnership, one that not only secures a $135 billion investment but also sets the stage for new levels of innovation, IP management, and industry transparency for the decade ahead. This landmark deal was revealed as both companies look to solidify their leadership in responsible, accessible AI.

Expanded Investment

Microsoft now holds an investment in OpenAI Group PBC worth about $135 billion, equating to roughly a 27% stake in the company on a fully diluted basis. This latest agreement reaffirms Microsoft’s ongoing support for OpenAI’s transformation into a public benefit corporation (PBC), and builds on its previous estimated 32.5% stake prior to OpenAI’s latest funding rounds.

Microsoft and OpenAI IP Rights and Azure Exclusivity Extended

As outlined in a post on OpenAI’s blog, the agreement strengthens core elements of the partnership, such as:

• OpenAI remains Microsoft’s primary partner for frontier AI models.

• Microsoft continues to hold exclusive IP rights and Azure API exclusivity for OpenAI models until the advent of Artificial General Intelligence (AGI), now extended through 2032—even beyond the arrival of AGI, with key safety guardrails in place.

• Microsoft’s IP rights now include future models post-AGI and select research IP, while explicitly excluding OpenAI’s consumer hardware.

Major Changes in Collaboration and Product Development

A few of the most notable updates include:

• Once AGI is declared, its status will be verified by an independent expert panel.

• OpenAI can now jointly develop products with third parties. APIs developed with partners will remain exclusive to Azure, but other products may be run on any cloud.

• Both companies can independently pursue AGI, and OpenAI is now able to provide API access to US government national security clients, regardless of the underlying cloud infrastructure.

• OpenAI has committed to purchasing an additional $250 billion of Azure services through this partnership, though Microsoft’s right of first refusal as OpenAI’s compute provider has ended.

Future-Proofing AI and Responsible Innovation

Another significant feature of the new deal is the lengthened revenue share agreement, which will continue until AGI is officially validated. Additionally, OpenAI can release open weight models meeting safety and capability standards, fostering greater transparency in the AI community.

Positioning for the Next Chapter

With this definitive agreement, Microsoft and OpenAI are not just renewing their commitment—they’re paving the way for accelerated, responsible AI development while preserving the independence and innovative spirit of both organizations. The pact offers a blueprint for industry-wide collaboration that seeks to balance exclusivity with open development, and profit with public benefit. Read Microsoft’s nearly identical announcement.

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