Bedrock now runs OpenAI's agent harness and frontier models as a managed service inside AWS: IAM permissions, CloudTrail audit, data kept in AWS, with AgentCore Runtime as the default compute. How it relates to AgentCore, the OpenAI Agents SDK and Claude-based agents, and what preview means for production plans.
AWS first announced OpenAI models, Codex and Managed Agents on Bedrock as a limited preview in April 2026; Managed Agents powered by OpenAI reached public preview in October. It packages OpenAI's frontier models with OpenAI's agent harness, the loop that plans, calls tools and steers long-running tasks, and runs it inside your AWS account's controls.
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OpenAI models and the OpenAI agent harness, without managing the loop yourself.
Existing IAM permissions for what the agent can reach, and CloudTrail for what it did.
Data kept within AWS.
AgentCore Runtime as the default compute, or your own compute if you need it. The new AgentCore Runtime (September 2026) reclaims unused memory during a session, so you pay for actual use rather than peak.
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As of October 25, 2026. Provided as is, for general information, and accurate to the best of our knowledge on the date shown. Not legal, compliance, tax, financial or other professional advice. Prices, limits and vendor services change; check current vendor documentation before relying on anything here. Terms of use.