OpenAI models entered Amazon Bedrock in a limited preview, giving AWS customers access to OpenAI capabilities through the familiar Bedrock API surface and IAM controls. This is the first time OpenAI models have been available natively inside the AWS ecosystem rather than requiring direct OpenAI API credentials. The move mirrors Microsoft's existing OpenAI distribution advantage via Azure OpenAI Service, and signals a broader push by OpenAI to expand marketplace reach. Teams already invested in Bedrock's unified model access, guardrails, and logging infrastructure can now experiment with OpenAI models without managing separate API keys or billing relationships. Availability is limited preview, so production readiness timelines remain unclear.