Vercel AI SDK

An open source library for building AI-powered user interfaces.

The Vercel AI SDK is an open-source library designed to help developers build conversational streaming user interfaces in JavaScript and TypeScript. The SDK supports React/Next.js, Svelte/SvelteKit, and Vue/Nuxt as well as Node.js, Serverless, and the Edge Runtime (opens in a new tab).

Serverless & Edge-ready

Build AI-powered apps that are fast across Node.js, Serverless, and Vercel Edge Functions.

Built-in Adapters

First-class support for LangChain, OpenAI, Anthropic, and Hugging Face.

Streaming UI Helpers

SWR-powered React, Svelte, and Vue helpers for fetching and rendering streaming text responses.

Stream Lifecycle Callbacks

Callbacks for saving completed streaming responses to a database in the same request.

Templates & Examples

You can also clone or deploy a Vercel AI SDK starter repository to get a head start on your AI journey. For even more examples and starters, see the Vercel AI SDK examples directory on GitHub (opens in a new tab).

Next.js AI Chatbot

Next.js AI Chatbot

Full-featured AI chatbot built with Next.js (opens in a new tab), shadcn/ui (opens in a new tab), NextAuth.js (opens in a new tab), Vercel AI SDK (opens in a new tab), and Vercel KV (opens in a new tab)

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Next.js OpenAI Starter

Next.js OpenAI Starter

Starter template for building AI-powered chat with Next.js (opens in a new tab), OpenAI (opens in a new tab), and the Vercel AI SDK (opens in a new tab)

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SvelteKit Starter

SvelteKit OpenAI Starter

Starter template for building AI-powered chat with SvelteKit (opens in a new tab), OpenAI (opens in a new tab), and the Vercel AI SDK (opens in a new tab)

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Nuxt Starter

Nuxt OpenAI Starter

Starter template for building AI-powered chat with Nuxt (opens in a new tab), OpenAI (opens in a new tab), and the Vercel AI SDK (opens in a new tab)

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Next.js Hugging Face Starter

Next.js Hugging Face Starter

Starter template for building AI-powered chat with Next.js (opens in a new tab), Hugging Face (opens in a new tab), and the Vercel AI SDK (opens in a new tab)

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Next.js Starter

Next.js LangChain Starter

Starter template for building AI-powered chat app with Next.js (opens in a new tab), LangChain (opens in a new tab), and the Vercel AI SDK (opens in a new tab)

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Nuxt Starter

Nuxt LangChain Starter

Starter template for building AI-powered chat app with Nuxt (opens in a new tab), LangChain (opens in a new tab), and the Vercel AI SDK (opens in a new tab)

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Integrations

OpenAIOpenAI is an AI research and deployment company. The Vercel AI SDK provides a simple way to use OpenAI in your frontend web applications.LangChainLangChain is an open source prompt engineering framework for developing applications powered by language models. The Vercel AI SDK provides a simple way to use LangChain in your frontend web applications.AnthropicAnthropic is an AI research and deployment company. The Vercel AI SDK provides a simple way to use Anthropic's Claude models in your frontend web applications.ReplicateReplicate an on-demand AI model hosting platform. The Vercel AI SDK provides a simple way to use Replicate models in your frontend web applications.Hugging FaceHugging Face is a collaboration and model hosting platform for the machine learning community. The Vercel AI SDK provides a simple way to use Hugging Face models in your frontend web applications.CohereCohere is an AI platform for enterprise. The Vercel AI SDK provides a simple way to use Cohere's command models in your frontend web applications.FireworksFireworks is a lightning-fast LLM inference platform. The Vercel AI SDK provides a simple way to use Fireworks.ai's models in your frontend web applications.

Getting Started