Summary
OpenAI and AWS announced on April 28, 2026 that GPT-5.5 on Amazon Bedrock, Codex on Bedrock, and Amazon Bedrock Managed Agents powered by OpenAI are entering limited preview. The move gives AWS customers a more direct path to run OpenAI models, coding workflows, and agent deployments inside existing AWS security, identity, procurement, and governance environments.
What changed
OpenAI launched three AWS-facing products in limited preview: OpenAI models on Amazon Bedrock, Codex configured through Bedrock, and Amazon Bedrock Managed Agents powered by OpenAI.
Why it matters
This is a distribution and enterprise-control move, not just a model listing. OpenAI is making its frontier models and coding harness available inside a major cloud control plane, which lowers procurement friction and makes Bedrock a more credible home for long-running agent workflows.
Evidence excerpt
OpenAI said the expanded partnership brings together OpenAI models on AWS, Codex on AWS, and Amazon Bedrock Managed Agents powered by OpenAI, all launching in limited preview on April 28, 2026.