OpenAI announced that it will make its models, including GPT-5.5 and Codex, available directly to customers on Bedrock in the coming weeks, alongside the launch of the Stateful Runtime Environment. This development follows the end of Microsoft’s exclusivity and aims to provide builders with greater flexibility in selecting models for their projects. The Stateful Runtime Environment allows for persistent AI agents with native memory on AWS infrastructure, ensuring integration maintains AWS’s security and compliance standards. Further details are expected to be shared at the AWS event in San Francisco tomorrow.

AWS: AWS (Amazon Web Services) is Amazon’s comprehensive cloud platform offering services for compute, storage, databases, and generative AI through tools like Amazon Bedrock. It facilitates enterprise-grade AI development with built-in security and compliance. AWS is hosting OpenAI models on Bedrock and will detail the integration at an upcoming event in San Francisco.
OpenAI: OpenAI develops frontier AI models like GPT-5.5 and specialized tools such as Codex for code generation and Managed Agents for enterprise workflows. The organization is partnering with AWS to integrate its models directly into Amazon Bedrock, expanding access beyond previous Microsoft exclusivity. This enables AWS customers to build secure AI applications using OpenAI technology.
Bedrock: Amazon Bedrock is a fully managed AWS service that provides a unified API for accessing foundation models from various AI providers, supporting customization and secure deployment. It now hosts OpenAI models, Codex, and Managed Agents, alongside features like Claude Cowork previews. The news announces upcoming availability of OpenAI models on Bedrock for enhanced builder choice.
Stateful Runtime Environment: Stateful Runtime Environment is a runtime co-developed by AWS and OpenAI optimized for AI agents on Amazon Bedrock, enabling persistent memory, context retention, and secure execution within AWS infrastructure. It treats agent state as a first-class primitive to support long-running workflows. The announcement highlights its upcoming launch alongside OpenAI models on Bedrock.

`json
{
“Agent Capabilities”: “Stateful Runtime Environment enables persistent AI agents with native memory and governance on AWS infrastructure.”,
“Partnership Expansion”: “OpenAI’s models will be available on Bedrock alongside existing AWS infrastructure offerings.”,
“Enterprise Integration”: “OpenAI models integrate via existing Bedrock APIs, maintaining AWS security and compliance layers.”
}
`