Microsoft and OpenAI renegotiated their deal, ending Microsoft's exclusive right to sell OpenAI's AI models and allowing OpenAI to forge new agreements with rivals like Amazon. Microsoft shares initially fell 1.3% but closed largely unchanged; Alphabet closed up 1.81%, while Amazon closed down 1.1%. Microsoft's early investment totaled $13 billion since 2019. Under the new terms, Microsoft remains OpenAI's primary cloud partner with an IP license through 2032 and a guaranteed 20% cut of OpenAI's revenue until 2030, now subject to an undisclosed cap. The deal removes a rider that would have let OpenAI stop paying Microsoft upon achieving artificial general intelligence. OpenAI's promise to use at least $250 billion in Azure services by 2032 remains, with Microsoft having first rights to offer OpenAI products on Azure unless it declines. Microsoft will no longer pay OpenAI a share of Microsoft's revenue for offering OpenAI models on Azure. An analyst noted the change was essential for OpenAI's enterprise success, as AWS and Google Cloud customers were previously limited in integrating OpenAI products.