# Vercel AI SDK

> Unified TypeScript SDK for building AI applications

**Category:** AI Agents  
**Pricing:** open-source  
**URL:** https://sdk.vercel.ai  
**GitHub:** https://github.com/vercel/ai  
**Added:** 2026-08-19

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## The Hook

Vercel AI SDK is the abstraction layer that makes model providers interchangeable.

## What's Good

One SDK, every model provider. Streaming responses, tool calling, structured outputs—the AI SDK handles the details while you write against a unified interface. Swap between OpenAI, Anthropic, Google, and more without changing application code.

## The Catch

Vercel-optimized, which is great on Vercel and requires more work elsewhere. Abstraction means some provider-specific features are harder to access.

## Verdict

The SDK for AI applications in the Next.js ecosystem.