ai-sdk-core

# AI SDK Core

Backend AI with Vercel AI SDK v5 and v6.

**Installation:**
```bash
npm install ai @ai-sdk/openai @ai-sdk/anthropic @ai-sdk/google zod
```

---

## AI SDK 6 (Stable - January 2026)

**Status:** Stable
**Latest:** ai@6.0.26 (Jan 2026)

### BREAKING: Output API Replaces generateObject/streamObject

⚠️ **CRITICAL**: `generateObject()` and `streamObject()` are **DEPRECATED** and will be removed in a future version. Use the new Output API instead.

**Before (v5 - DEPRECATED):**
```typescript
// ❌ DEPRECATED - will be removed
import { generateObject } from 'ai';

const result = await generateObject({
  model: openai('gpt-5'),
  schema: z.object({ name: z.string(), age: z.number() }),
  prompt: 'Generate a person',
});
```

**After (v6 - USE THIS):**
```typescript
// ✅ NEW OUTPUT API
import { generateText, Output } from 'ai';

const result = await generateText({
  model: openai('gpt-5'),
  output: Output.object({ schema: z.object({ name: z.string(), age: z.number() }) }),
  prompt: 'Generate a person',
});

// Access the typed object
console.log(result.object); // { name: "Alice", age: 30 }
```

### Output Types

```typescript
import { generateText, Output } from 'ai';

// Object with Zod schema
output: Output.object({ schema: myZodSchema })

// Array of typed objects
output: Output.array({ schema: personSchema })

// Enum/choice from options
output: Output.choice({ choices: ['positive', 'negative', 'neutral'] })

// Plain text (explicit)
output: Output.text()

// Unstructured JSON (no schema validation)
output: Output.json()
```

### Streaming with Output API

```typescript
import { streamText, Output } from 'ai';

const result = streamText({
  model: openai('gpt-5'),
  output: Output.object({ schema: personSchema }),
  prompt: 'Generate a person',
});

// Stream partial objects
for await (const partialObject of result.objectStream) {
  console.log(partialObject); // { name: "Ali..." } -> { name: "Alice", age: ... }
}

// Get final object
const finalObject