LlamaIndex vs Mastra

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

	LlamaIndex Data framework for connecting LLMs to private data, with RAG, agents, and event-driven workflows.	Mastra TypeScript-first agent framework with workflows, RAG, memory, evals.
Category	framework	framework
Vendor type	hybrid	open source
Pricing	freemium	free
Strengths	+ Extensive data connectors and RAG tooling + Strong document parsing and ingestion (LlamaParse/LlamaCloud) + Agents and event-driven workflows built in + Large ecosystem and integrations	+ First-class TypeScript / Node ergonomics + Provider-agnostic from day one + Batteries-included (RAG, memory, evals)
Tradeoffs	− Broad API surface can be complex to navigate − Heritage is RAG-centric rather than agent-first − Frequent API changes across versions	− Younger ecosystem vs LangChain/LangGraph − Less Python community overlap
Used in stacks	0	4