Microsoft is considering potential legal action regarding a $50 billion cloud computing deal between Amazon and OpenAI, the Financial Times reported.

The partnership would represent a significant expansion of the relationship between Amazon's cloud computing division and the artificial intelligence company behind ChatGPT. OpenAI currently has existing partnerships with Microsoft, which has invested billions of dollars in the AI startup and integrates its technology across Microsoft's product suite.

Details about the specific terms of the Amazon-OpenAI agreement and the nature of Microsoft's potential legal concerns were not immediately available. The reported deal would mark a major shift in OpenAI's cloud infrastructure arrangements.

Microsoft has been OpenAI's primary cloud provider and strategic partner since making its initial investment in the company. The tech giant has integrated OpenAI's technology into products including Bing search, Office applications, and its Azure cloud platform.

Neither Microsoft, Amazon, nor OpenAI immediately responded to requests for comment about the reported partnership or potential legal challenge. The Financial Times report did not specify what legal grounds Microsoft might pursue or when any action might be taken.