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Mastra vs Vercel AI SDK

Compare Mastra and Vercel AI SDK on deployment, pricing, model support, and more.

Mastra

Tagline
TypeScript AI agent framework
Description
Ship AI agents that reason, remember, and act in TypeScript. Mastra provides memory, tools, MCP, and observability to go from prototype to production.
Category
LLM Frameworks
Pricing
Free
Metric
Open source
Yes
Link
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Vercel AI SDK

Tagline
TypeScript AI SDK for React and Node — streaming, tool use, and multi-provider LLM integration with 1M+ npm downloads/week
Description
The Vercel AI SDK is an open-source TypeScript toolkit for building AI-powered applications with React, Next.js, and Node.js. It provides a unified API across 20+ LLM providers (OpenAI, Anthropic, Google, Mistral, Groq, and more), React hooks for streaming chat UIs (`useChat`, `useCompletion`), server-side streaming helpers, and first-class support for tool use and structured outputs. The de-facto standard SDK for building AI features in TypeScript/React applications.
Category
LLM Frameworks
Pricing
Free
Metric
1,000,000 npm weekly downloads (source)
Open source
Link
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