TypeScript toolkit for building AI applications
The Vercel AI SDK is an open-source TypeScript toolkit designed for building AI-powered web applications with streaming support. It provides React hooks, server-side utilities, and adapters for major AI providers (OpenAI, Anthropic, Google, etc.) to create chatbots, text completion interfaces, and generative UI experiences. It integrates seamlessly with Next.js, Nuxt, and SvelteKit.
Free and open source. You pay only for the AI model APIs you consume.
SDK v4
Install with npm install ai or pnpm add ai
Import useChat or useCompletion hooks in your React component
Set up an API route with your chosen AI provider
Use streamText() or generateText() on the server side
Deploy your AI app to Vercel or any Node.js host
Best For
TypeScript developers building AI-powered web applications with streaming interfaces
Free Trial
Completely free and open source
Mobile App
Web framework library, not a standalone app
API Access
SDK library — integrates with any AI provider API
Team Features
Open source — teams use with their own infrastructure
Last Updated
2026-02
Vercel AI SDK was released to the public, marking its official debut in the AI landscape.
SDK v4
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