On April 27, Microsoft and OpenAI announced revised partnership terms that loosened the exclusivity that once defined the relationship.

AI & Business for April 28

The revised agreement will enable OpenAI to “serve all its products to customers across any cloud provider.” In a post on X published today, Amazon.com Inc. Chief Executive Andy Jassy stated that the ChatGPT developer’s models will become available to Amazon Bedrock customers within a few weeks.

Microsoft and OpenAI end exclusivity, allowing AI models on rival clouds while resetting revenue terms and expanding enterprise access.

Microsoft and OpenAI’s amended deal loosens exclusivity, simplifies economics, and signals AI’s shift toward multi-cloud infrastructure.

Microsoft launches three in-house MAI models for transcription, voice and image generation through Foundry, hedging its reliance on OpenAI.

Microsoft has invested over $13 billion in OpenAI since 2019 and holds a 27% stake in the company as of late 2025. Microsoft has served as OpenAI's primary cloud provider, licensed its models exclusively,

OpenAI partnership, AWS customers can now access OpenAI models, including GPT-5.5, and the Codex coding agent through Bedrock.

OpenAI is reportedly testing a new feature called "Chronicle" for its AI coding agent, Codex. This opt-in feature captures screenshots to build contextual "memories," aiming to improve AI understanding without repeated user input.