Mastra vs Vercel AI SDK

Pick two tools from the same category to compare side-by-side.

	Mastra TypeScript-first agent framework with workflows, RAG, memory, evals.	Vercel AI SDK Free, open-source TypeScript toolkit from Vercel for building AI-powered apps and agents.
Category	framework	framework
Vendor type	open source	open source
Pricing	free	free
Strengths	+ First-class TypeScript / Node ergonomics + Provider-agnostic from day one + Batteries-included (RAG, memory, evals)	+ Unified, provider-agnostic API across many model vendors + First-class streaming and UI integration for web frameworks + Strong TypeScript ergonomics and type safety + Free and open source with a large, active community
Tradeoffs	− Younger ecosystem vs LangChain/LangGraph − Less Python community overlap	− TypeScript/JavaScript only, with no Python support − Lighter-weight than full agent-orchestration frameworks for complex flows
Used in stacks	4	0