Microsoft announced it would end its exclusive cloud partnership with OpenAI , allowing the AI startup to sell its products on rival platforms such as Amazon and Google Cloud . The restructured deal keeps Microsoft as the primary cloud partner through 2032 and removes revenue sharing on OpenAI products sold on Microsoft’s cloud, replacing it with a capped arrangement through 2030. In the broader tech landscape, the move follows a reported $50 billion cloud agreement that raised concerns about antitrust scrutiny. The change also comes after OpenAI said demand on Amazon’s cloud had been “staggering,” and after the company’s earlier October restructuring that lifted constraints on capital raising and computing resources. Financial markets reacted with a 1.3% drop in Microsoft shares initially, while Alphabet shares rose 1.5% and Amazon shares fell 0.5%. Barclays analysts noted that the new arrangement frees Microsoft from building out all data‑center needs for OpenAI, freeing capital for its 365 Copilot and other cloud capacity. They called the move a positive for both firms. Analyst Gil Luria of D.A. Davidson & Co said the new deal was essential for OpenAI to succeed in the enterprise market and that AWS and Google Cloud customers will now be more likely to consider OpenAI alongside Anthropic . He added that the partnership had previously limited enterprise integration. Looking ahead, the expanded cloud reach could accelerate OpenAI’s enterprise adoption and give Microsoft more flexibility to develop its own AI models, including Anthropic‑powered solutions for its 365 Copilot suite. The partnership’s new terms may also ease antitrust concerns in the U.S., U.K., and Europe.