In a swift move following the dissolution of Microsoft's exclusive distribution rights, Amazon Web Services (AWS) announced the availability of OpenAI models on its Bedrock platform. The new offerings, unveiled at a San Francisco event, come just one day after Microsoft and OpenAI restructured their partnership, ending Azure's exclusivity on OpenAI models.
AWS introduced three services in limited preview: OpenAI models on Bedrock, Codex on Bedrock, and Amazon Bedrock Managed Agents, powered by OpenAI. GPT-5.4 is available immediately, with GPT-5.5 expected in the coming weeks, according to AWS CEO Matt Garman. OpenAI CEO Sam Altman appeared via video, as he was occupied in court for the Musk trial.
The highlight of the announcement is Bedrock Managed Agents, an enterprise agent platform that pairs OpenAI's frontier models with AWS infrastructure. Each agent has its own identity, logs every action, and runs entirely within the customer's environment, with inference handled through Bedrock.
This development follows a strategic partnership between Amazon and OpenAI announced in February, involving up to $50 billion in investment and $100 billion in AWS compute commitment. At that time, Microsoft had expressed concerns that the deal violated their exclusivity rights, even considering legal action. The revised contract between Microsoft and OpenAI resolves this conflict, allowing AWS to move forward.
"Managed Agents works alongside Amazon Bedrock AgentCore, which provides the default compute environment," AWS noted in its announcement.
The end of exclusivity marks a significant shift in the AI landscape, giving enterprises more flexibility in choosing cloud providers for their AI workloads.