#Structured Output

Apple LLM supports structured outputs using JSON Schema. You can use libraries like Zod to generate a schema, which is then used to guide the model's output.

#Usage

import { foundationModels } from '@react-native-ai/apple';
import { z } from 'zod';

const schema = z.object({
  name: z.string(),
  age: z.number().int().min(0).max(150),
  email: z.string().email(),
});

const result = await foundationModels.generateText([
  { role: 'user', content: 'Create a user profile' }
], { schema });

// Result is properly typed:
// { name: string, age: number, email: string }

#Supported Types

• Objects, arrays, strings, numbers, booleans, enums
• Number constraints: min, max, exclusiveMin, exclusiveMax

#Unsupported Types

• String formats: date-time, time, date, duration, email, hostname, ipv4, ipv6, uuid
• AnyOf