Accessing OpenAI models on Amazon Bedrock from Australia with global cross-Region inference

Australian teams working with OpenAI models can now access the latest OpenAI models through Amazon Bedrock. Amazon Bedrock offers OpenAI GPT-5.6 Sol, Terra, and Luna with global cross-Region inference from both Asia Pacific (Sydney) and Asia Pacific (Melbourne) AWS Regions in Australia. Your application calls the Amazon Bedrock Runtime endpoint in Asia Pacific (Sydney) or Asia Pacific (Melbourne), and Amazon Bedrock routes the request to a supported commercial AWS Region for processing. This provides access to a broader capacity pool without requiring applications to manage destination Region routing. GPT-5.6 Sol is suited to demanding reasoning, coding, and agentic workloads. Terra balances performance and cost for everyday production use. Luna provides fast, affordable inference for high-volume and latency-sensitive applications. All three models accept text and image inputs, generate text, and support context windows of up to 1 million tokens. With the Amazon Bedrock Runtime endpoint, you can invoke these models with Responses API, Chat Completions API, and the Converse API from Asia Pacific (Sydney) and Asia Pacific (Melbourne).

In this post, we show you how to use prompt caching to optimize your inference cost, set up Codex with OpenID Connect (OIDC)-based authentication, and monitor usage with Amazon CloudWatch and Coding Agent Insights.