AWS Bedrock Integrates OpenAI Models

Amazon Web Services (AWS) said on Tuesday, April 28, 2026, that it is adding OpenAI’s latest models to its Bedrock service, expanding the set of third-party AI tools available on the cloud platform.

The company said the lineup includes OpenAI’s code-writing service Codex and a new AI agent product. AWS said the new offering will be delivered through a product it calls Bedrock Managed Agents.

Bedrock Managed Agents and OpenAI’s reasoning models

AWS described Bedrock Managed Agents as a way to use OpenAI’s reasoning models with added controls. The company said the service includes features such as agent steering and security.

In a blog post, Amazon said the move reflects a deepening collaboration between AWS and OpenAI. AWS did not describe additional commercial terms in the announcement.

OpenAI-Microsoft agreement change cleared a path for AWS

The AWS announcement followed a change in OpenAI’s relationship with Microsoft. OpenAI and Microsoft announced on Monday, April 27, 2026, that they had reached a revised agreement that ended Microsoft’s exclusive rights to OpenAI products.

According to the account described in the source material, the revised agreement also resolved earlier issues that had prevented AWS from offering OpenAI products. Those obstacles were described as becoming more acute after OpenAI secured a significant deal with Amazon.

Cloud providers broaden AI model options amid competition

The developments point to a shifting competitive landscape in artificial intelligence, with major cloud providers seeking to offer a wider range of models and agent tools across their platforms.

The source material said the relationship between Microsoft and OpenAI has reportedly been under strain, and that both companies have been looking for partnerships with rivals.

Rival partnerships: AWS and Oracle for OpenAI, Anthropic for Microsoft

OpenAI has expanded its collaborations to include AWS and Oracle, according to the source material. On the other side, Microsoft has engaged with Anthropic and is developing its own agent offerings powered by Claude.

As these partnerships broaden, the source material described a competitive environment that is accelerating development and increasing the availability of AI technologies across different cloud platforms. How quickly customers adopt Bedrock Managed Agents, and how the new OpenAI-Microsoft terms operate in practice, remain key uncertainties.