AI Gateway supports OpenAI's Responses API (opens in new tab)

**Published:** March 6, 2026 | **Authors:** Rohan Taneja, Walter Korman, Jerilyn Zheng --- OpenAI's Responses API is now available through AI Gateway. The Responses API is a modern alternative to the Chat Completions API. Point your OpenAI SDK to AI Gateway's base URL and use the `creator/model` names to route requests. TypeScript and Python are both supported. All of the functionality in the Responses API was already accessible through AI Gateway via the AI SDK and Chat Completions API, bu...