Structured Output With Zod

import { generateObject } from "ai";
import { anthropic } from "@ai-sdk/anthropic";
import { z } from "zod";

const ExtractSchema = z.object({
  people: z.array(
    z.object({
      name: z.string(),
      role: z.string().optional(),
      email: z.string().email().optional(),
    })
  ),
  summary: z.string().max(240),
});

export async function extract(text: string) {
  const { object } = await generateObject({
    model: anthropic("claude-opus-4-7"),
    schema: ExtractSchema,
    prompt: `Extract people mentioned and a short summary from:\n\n${text}`,
  });

  // object is fully typed from the schema
  console.log(`${object.people.length} people found`);
  return object;
}

import OpenAI from "openai";
import { zodResponseFormat } from "openai/helpers/zod";

const client = new OpenAI();

const r = await client.responses.parse({
  model: "gpt-5",
  input: [{ role: "user", content: "Extract a person from: Ada Lovelace, mathematician" }],
  text: { format: zodResponseFormat(z.object({ name: z.string(), role: z.string() }), "person") },
});

console.log(r.output_parsed); // { name: "Ada Lovelace", role: "mathematician" }