Vercel AI SDK
Vercel / vercel.com
Open source TypeScript SDK for building AI-powered web applications in Next.js and React with streaming, tool use, and a unified interface across AI providers, the standard for AI web development.
Pricing
Free
Free plan
Yes
Category
Developer Tools
Platforms
3
Free plan
Yes
API access
Yes
Open source
Yes
Platforms
3
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What is Vercel AI SDK?
The Vercel AI SDK is an open source TypeScript library providing a unified interface for building AI-powered web applications in Next.js and React. It works with OpenAI, Anthropic, Google, Groq, and other providers through a consistent API. The useChat and useCompletion React hooks abstract streaming response handling, message history, and loading states. Tool use (function calling) is supported consistently across providers. The SDK is the natural choice for the large Next.js developer community building AI features, given Vercel's position as the deployment platform for Next.js applications.
How Vercel AI SDK works
Vercel AI SDK runs as llm application framework software built around text and image workflows. Users typically start with a prompt, upload, or connected data source, and the underlying model handles the heavy lifting before returning a result you can refine or export. It's available on web (any host), vercel, and next.js, with API access for teams that want to embed it into their own products.
Watch Vercel AI SDK in action
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What makes it worth shortlisting
The capabilities that matter most for teams evaluating Vercel AI SDK.
Unified provider API
Consistent TypeScript interface for OpenAI, Anthropic, Google, and other AI providers enabling easy provider switching.
React streaming hooks
useChat and useCompletion hooks abstracting streaming response handling, message state, and loading indicators.
Tool use support
Consistent function calling implementation across AI providers enabling tools and API calls during AI generation.
Best use cases
Who should use it
Pros
- Most used TypeScript SDK for building AI web applications in Next.js
- Unified provider API simplifies switching between OpenAI, Anthropic, and other providers
- React hooks abstract streaming and state management to a few lines of code
- Vercel's position makes it the natural default for Next.js AI development
Cons
- Primarily optimised for Next.js — less natural for non-React frameworks
- Vercel deployment encourages vendor lock-in to Vercel infrastructure
- Rapidly evolving API requires staying current with breaking changes
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Is it worth the price?
Completely free and open source. Vercel deployment infrastructure costs separately.
Model
Open Source
Starting price
Free
Free trial
No
Tools like Vercel AI SDK
LangChain and LlamaIndex are more comprehensive for complex AI pipeline logic. Flowise provides no-code building. Anthropic and OpenAI provide their own SDK without the provider abstraction.
Vercel AI SDK vs v0
A side-by-side look at the closest alternative in this category.
Vercel AI SDK
Vercel
v0
Vercel
Completely free and open source. Vercel deployment infrastructure costs separately.
Free plan with 200 credits/month for UI generation. Pro $20/month with 5,000 credits. Team $30/user/month. Enterprise custom pricing.
Open source: no data handling. Vercel deployment subject to Vercel privacy policy.
Review Vercel's data handling policy for generated code. Generated code follows standard open source component library licences.
Vercel AI SDK is open source and handles no data directly. Data handling entirely through configured AI providers and deployment infrastructure.
Review Vercel's privacy policy. Generated code is returned to the user and not used to train models by default.
- Most used TypeScript SDK for building AI web applications in Next.js
- Unified provider API simplifies switching between OpenAI, Anthropic, and other providers
- React hooks abstract streaming and state management to a few lines of code
- Vercel's position makes it the natural default for Next.js AI development
- Generates clean well-structured React code usable in production codebases
- Tight integration with Vercel deployment pipeline
- Tailwind CSS and shadcn/ui integration matches modern web development standards
- Free plan provides meaningful capacity for regular prototyping
- Primarily optimised for Next.js — less natural for non-React frameworks
- Vercel deployment encourages vendor lock-in to Vercel infrastructure
- Rapidly evolving API requires staying current with breaking changes
- Generates UI components and layouts, not complete full-stack applications
- Credits can deplete quickly with complex or iterative requests
- Limited to React/Next.js/Tailwind stack
Technical & deployment info
Key facts about model providers, platforms, and team support.
Model Provider
OpenAI, Anthropic, Google, Groq, Mistral, Agnostic
Platforms
Web (any host), Vercel, Next.js
Deployment
Open Source
Integrations
OpenAI, Anthropic, Google Gemini, Groq, Mistral, Ollama, Hugging Face
Team Collaboration
No
Launch Year
2023
Security & privacy
Compliance signals and data-handling notes as reported by the vendor.
Open source: no data handling. Vercel deployment subject to Vercel privacy policy.
Vercel AI SDK is open source and handles no data directly. Data handling entirely through configured AI providers and deployment infrastructure.
What users are saying
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Common questions about Vercel AI SDK
Editorial Verdict
Should you use Vercel AI SDK?
Vercel AI SDK is the best choice for Next.js and React developers building AI-powered web applications who want a well-maintained, provider-agnostic SDK with excellent streaming support.
Last verified July 24, 2026.