Microsoft Shares Slide After OpenAI Drops Azure Exclusivity

OpenAI CEO Sam Altman said the company has revised its partnership with Microsoft (MSFT), ending Azure's cloud exclusivity and allowing OpenAI to sell its products across rival platforms. The update weighed on Microsoft shares as traders pointed to the loss of an Azure-only advantage for OpenAI's flagship artificial intelligence offerings. Altman said Microsoft will remain OpenAI's primary cloud partner, but the licensing arrangement is now nonexclusive. OpenAI can make its models available through Amazon Web Services, Google Cloud, Oracle and other competitors. The revised terms also reshape the money flows. OpenAI will continue supplying Microsoft with models and products through 2032 and will pay a revenue share to its largest backer through 2030. Microsoft will no longer remit a revenue share to OpenAI, eliminating an expense line for the software company. MSFT fell as much as 5% intraday before trimming losses, with the stock still trending lower into the close. Investors had viewed OpenAI workloads as a structural differentiator for Azure. Removing exclusivity potentially opens that business to AWS, Google Cloud and Oracle, all of which have been courting leading-edge AI labs. Some analysts pushed back on the bearish read. CFA Palwinder Singh said the selloff ignored Microsoft's ongoing upside as OpenAI's largest equity holder, citing its 27% stake valued at $135 billion. Singh argued the pullback could be an opportunity for investors focused on fundamentals rather than headlines. Microsoft also retains ChatGPT's intellectual property rights through 2032 alongside its equity stake. Investors now face a trade-off: whether the end of revenue-share payments and continued access to OpenAI models can offset the loss of cloud exclusivity, a dynamic with potential implications across the broader AI sector, including Altman-linked ventures such as Worldcoin.