On Monday, Microsoft and OpenAI revealed that they have once again restructured their partnership agreement. While some on X view this as a win for the ChatGPT developer over the software giant, both companies emerge as beneficiaries. Most crucially, the updated terms resolve a lingering issue that had been hanging over OpenAI since it signed its massive up-to-$50 billion deal with Amazon. Under this new arrangement, instead of Microsoft holding exclusive access to all of OpenAI's products and intellectual property until the elusive day when OpenAI achieves AGI, the partnership now has a clear expiration date. This contract grants Microsoft a non-exclusive license to OpenAI's IP for models and products through 2032.

The two companies continue to refer to Microsoft as OpenAI's "primary cloud partner," meaning the majority of OpenAI's cloud computing needs will likely be served by Azure for the six-year duration of this deal, even as OpenAI rushes to build its own data centers with other partners. In October, OpenAI agreed to purchase an additional $250 billion worth of Microsoft's cloud services. This commitment sends a message to Microsoft shareholders that OpenAI will remain a significant Azure customer. OpenAI products will be launched "first on Azure, unless Microsoft cannot and chooses not to support the necessary capabilities," the companies stated. However, notably, "OpenAI can now serve all its products to customers across any cloud provider."

Again, the term "first" remains ambiguous in this announcement—whether it means exclusive availability on Azure for a specific period or simply that Microsoft will also be among the vendors offering OpenAI's latest products. But the most critical aspect of this clause is that it eliminates the possibility of Microsoft suing OpenAI over the AI lab's deal with Amazon. To recap the messy situation: In February, OpenAI announced that Amazon was investing up to $50 billion in the model maker, consisting of a $15 billion initial investment and an additional $35 billion "in the coming months when certain conditions are met," without specifying those conditions. In exchange, OpenAI agreed to co-develop a "stateful runtime technology" on AWS Bedrock—the AWS service that provides various AI models and services. Stateful runtime is the technology that supports AI agents, enabling them to remember tasks and contexts over extended periods. OpenAI also promised AWS exclusive rights to serve its new agent-building tool, Frontier.

And there lies the conflict. OpenAI's original agreement with Microsoft prevented the company from selling Frontier exclusively on AWS, and possibly barred AWS from selling it altogether. While Microsoft had previously allowed OpenAI to run certain select products, like consumer ChatGPT, on other cloud providers, it retained exclusive rights to any OpenAI product accessed through an API, such as Frontier. In fact, on the same day OpenAI announced its AWS deal, Microsoft publicly disputed the AWS exclusivity terms, writing (emphasis Microsoft's):

"Microsoft maintains its exclusive license and access to intellectual property across OpenAI models and products. ... Azure remains the exclusive cloud provider of stateless OpenAI APIs. ... Any stateless API calls to OpenAI models that result from a collaboration between OpenAI and any third party—including Amazon—would be hosted on Azure. ... OpenAI's first party products, including Frontier, will continue to be hosted on Azure."

Microsoft also stressed that its terms were in effect until OpenAI reached AGI. The Financial Times reported that Microsoft even considered legal action to enforce these contract terms. So, the new agreement removes Microsoft's exclusive rights and resolves the legal risk involving AWS. In a post on X, Amazon CEO Andy Jassy celebrated the deal, adding that it meant OpenAI's models would become available to customers on AWS Bedrock.

While this deal benefits OpenAI, Microsoft also secured some wins. The new arrangement now allows Microsoft to stop paying a revenue share to OpenAI, while OpenAI will continue to pay a revenue share to Microsoft through 2030, though this is now subject to a cap. Exactly how much cash will flow to Microsoft is difficult to determine, but it's likely in the billions. Last quarter, Microsoft reported earning $7.5 billion in a single quarter from its investment in OpenAI. The key point is that Microsoft remains a major shareholder in OpenAI, owning about 27 percent of the for-profit entity, as stated in October. It financially benefits from OpenAI's growth, even from sales made on AWS. The downside, of course, is that Microsoft loses out on any additional cloud services it could have sold as a result of an exclusive deal with OpenAI. That may not matter much. Just as OpenAI has been courting Microsoft's biggest competitors, Microsoft has established a new, cozy relationship with OpenAI rival Anthropic, using its Claude AI to power agentic products for the cloud giant.

The biggest winners here are enterprises, who can now choose their models and their clouds while the giants compete to serve them. Here's a timeline of the recent changes in Microsoft's relationship with OpenAI:

- In October, Microsoft and OpenAI announced a new agreement to help OpenAI fend off a lawsuit from Elon Musk regarding its corporate structure, giving OpenAI the ability to run non-API-accessed products on other clouds. - In November, OpenAI and Amazon signed their first multi-year agreement, with OpenAI contracting for $38 billion worth of AWS cloud services. - In February, Amazon announced an up to $50 billion investment in OpenAI, pending "certain conditions" including exclusive tech development and hosting for Frontier and stateful tech. On the same day, Microsoft refuted that AWS would have that tech exclusively. - In March, the Financial Times reported that Microsoft was considering legal action. - In April, OpenAI and Microsoft announced a new deal that includes a calendar end date for their exclusive partnership and allows OpenAI to run all its products on other clouds. Microsoft no longer has to pay OpenAI revenue share. Microsoft remains a major shareholder in OpenAI.