OpenAI published a companion cookbook on June 1 walking developers through production workflows with its models on Amazon Bedrock, using the Responses API rather than the raw Bedrock SDK.

The OpenAI Cookbook covers structured outputs, tool calling, file inputs, conversation state management, prompt caching, and Bedrock-specific guardrails. The practical effect: developers who already have AWS deployments can slot OpenAI models into existing infrastructure without rewriting their stack or changing their AWS billing footprint.

The guide is a concrete signal that OpenAI treats multi-cloud distribution as a standing strategy. For years, Azure was the primary commercial channel. The AWS GA announcement paired with this hands-on reference changes the calculus for any team that delayed OpenAI adoption because of cloud-lock concerns.

Developers building on AWS should read the OpenAI Cookbook before their next sprint planning session; the prompt-caching and tool-calling patterns documented there may cut both latency and cost in workflows currently routed through other providers.

OpenAI Cookbook, published June 1, 2026, at developers.openai.com.