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AI SDK 5 by Vercel

The AI toolkit for TypeScript

Open Source
Developer Tools
Artificial Intelligence
GitHub
SDK

Building applications with TypeScript means building applications for the web. AI SDK 5 is the first AI framework with a fully typed and highly customizable chat integration for React, Svelte, Vue and Angular.

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@Vercel just announced AI SDK 5, a free open-source library that gives you the tools you need to build AI-powered products.

Read on the announcement — source:

With over 2 million weekly downloads, the AI SDK is the leading open-source AI application toolkit for TypeScript and JavaScript. Its unified provider API allows you to use any language model and enables powerful integrations into leading web frameworks.

Makers like @haydenbleasel used it to build @Tersa and to put it simply: "It's incredibly powerful."

Any other good examples?

Comment highlights

How does one use this now? Is it basically an MCP? Or is it an AI that you run on device?

No way—I've been craving a simpler way to scale and deploy my Next.js projects without all the DevOps headaches. How does Vercel handle traffic spikes in real time?