Microsoft weighs legal action over Amazon

Microsoft is weighing legal action against Amazon and OpenAI over a reported US$50 billion deal that could breach Microsoft’s exclusive cloud partnership with OpenAI, the Financial Times reported.

Under that partnership Microsoft requires all access to OpenAI’s models to be routed through its Azure cloud platform.

The dispute centers on whether Amazon Web Services can offer OpenAI’s new commercial product Frontier without violating the Azure routing requirement.

Microsoft, Amazon, and OpenAI did not immediately respond to Reuters’ requests for comment.

🔗 Source: Reuters

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The deal’s fine print lays out who handles what

The Financial Times wrote that Microsoft is considering legal action against Amazon and OpenAI over a reported US$50 billion deal, while Reuters said it could not immediately verify the FT account.
Another account says Amazon’s US$50 billion pledge has two tranches, with US$15 billion paid upfront and US$35 billion tied to OpenAI completing an IPO (initial public offering) or hitting an undefined “AGI milestone” (a benchmark tied to artificial general intelligence) 1.
A Microsoft–OpenAI joint statement says the arrangement keeps Azure as the sole cloud provider for stateless API calls (requests that don’t retain information between calls) to OpenAI models, including calls that come from third-party work with companies such as Amazon 2.
AWS (Amazon Web Services) instead gets exclusive third-party cloud distribution for OpenAI Frontier, a new commercial product at the center of the dispute and described elsewhere as an enterprise agent platform (software that can take actions on a company’s behalf) 3.

The fight for AI work is moving toward premium software layers

The conflict tracks a shift in cloud competition, away from who supplies training compute and toward who gets to host or distribute higher-margin AI applications.
The split runs through Azure-routed stateless APIs versus stateful, persistent AI agent platforms (systems that maintain ongoing context and data) distributed through Frontier on AWS, which frames enterprise agentic systems (AI designed to plan and act) as a new flashpoint 3.
This setup can steer companies toward multi-cloud use, with Azure handling stateless access while AWS supports agent deployments through Frontier 2.
Exclusive partnerships already sit under a regulatory lens, since the FTC (Federal Trade Commission) issued subpoenas in early 2024 to Amazon, Microsoft, Google, OpenAI, and Anthropic to review AI deals that include exclusivity, while AWS’s Frontier rights may draw more scrutiny 1.