OpenAI’s Decisions API is now available through Netlify’s AI Gateway with zero configuration required.

Use the OpenAI SDK directly in your Netlify Functions to classify, route, and score inputs without managing API keys. Instead of generating prose, the Decisions API answers questions you define about an input, and choice answers are always one of the options you declared. That means there’s no output to parse and nothing unexpected to handle before you branch on the result. The Decisions API is in beta and currently runs on gpt-6-luna.

Here’s a Function for an online store that sorts incoming return requests by reason:

import type { Config } from "@netlify/functions";
import OpenAI from "openai";

export default async (req: Request) => {
  const openai = new OpenAI();

  const { answers } = await openai.decisions.create({
    model: "gpt-6-luna",
    input: await req.text(),
    questions: [
      {
        type: "choice",
        name: "reason",
        instructions: "Why is the customer returning this item?",
        choices: [
          { value: "wrong_size" },
          { value: "defective" },
          { value: "not_as_described" },
          { value: "changed_mind" },
        ],
      },
    ],
  });

  return Response.json(answers[0]);
};

export const config: Config = { path: "/api/returns", method: "POST" };

Send it “The jacket fits well, but the zipper came off the second time I wore it” and you get back:

{
  "type": "choice",
  "name": "reason",
  "choice": "defective",
  "probabilities": [
    { "value": "wrong_size", "probability": 0.01 },
    { "value": "defective", "probability": 0.95 },
    { "value": "not_as_described", "probability": 0.03 },
    { "value": "changed_mind", "probability": 0.01 }
  ],
  "confidence": 0.93
}

choice is safe to branch on directly, so you can send a prepaid label for defective items or offer an exchange for the wrong size, and use confidence to pass unclear requests to your support team.

Learn more in the AI Gateway documentation and the OpenAI API reference.