OpenAI's Latest Models and Codex Now Generally Available on AWS Bedrock

On June 1, 2026, OpenAI announced that its latest frontier models and the coding agent "Codex" are now generally available (GA) on Amazon Bedrock. Enterprises can now run OpenAI's models in production while keeping the same security, compliance, and governance workflows they already use on AWS.

What Happened

OpenAI officially posted on X that its frontier models and Codex are now generally available on AWS. AWS official also announced this at the same time.

Prior to this, an official announcement on April 28, 2026, had launched the following three as a limited preview:

• OpenAI models on Amazon Bedrock: The latest frontier models such as GPT-5.5 and GPT-5.4 are available through Bedrock's existing API.
• Codex on Bedrock: Configure and launch the Bedrock API from the Codex CLI, desktop app, and VS Code extension.
• Amazon Bedrock Managed Agents, powered by OpenAI: An agent-building capability with memory retention, multi-step workflows, tool usage, agent ID management, and audit support (currently in limited preview).

With this GA transition (GPT-5.5, GPT-5.4, Codex), production operation is now possible in a form where data does not leave AWS, and usage can count toward eligible customers' existing AWS cloud commitments. Forbes

Background and Significance