LlamaIndex vs Mastra
A side-by-side comparison to help you choose the right tool.
85
LlamaIndex scores higher overall (85/100)
But the best choice depends on your specific needs. Compare below.
| Feature | LlamaIndex | Mastra |
|---|---|---|
| Our score | 85 | 80 |
| Pricing | Open-source core project; no license fee for core framework use. | Fully open source under MIT license. No cloud fees. Self-hosted on your own infrastructure. |
| Free plan | Yes | Yes |
| Best for | Teams building data-heavy AI assistants, Developers who need better structure around retrieval pipelines, Projects with lots of internal documents or knowledge bases | TypeScript and Node.js developers who want a structured, production-ready agent framework, Teams building internal AI copilots or customer-facing assistants with full code control, Startups embedding AI capabilities into products that need evals and tracing from day one |
| Platforms | mac, windows, linux, api | api, web |
| API | Yes | Yes |
| Languages | en | en |
| Pros |
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| Cons |
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| Visit site | Visit site |
- Pricing
- Open-source core project; no license fee for core framework use.
- Free plan
- Yes
- Best for
- Teams building data-heavy AI assistants, Developers who need better structure around retrieval pipelines, Projects with lots of internal documents or knowledge bases
- Platforms
- mac, windows, linux, api
- API
- Yes
- Languages
- en
Mastra
80
- Pricing
- Fully open source under MIT license. No cloud fees. Self-hosted on your own infrastructure.
- Free plan
- Yes
- Best for
- TypeScript and Node.js developers who want a structured, production-ready agent framework, Teams building internal AI copilots or customer-facing assistants with full code control, Startups embedding AI capabilities into products that need evals and tracing from day one
- Platforms
- api, web
- API
- Yes
- Languages
- en
85Choose LlamaIndex if:
- You are Teams building data-heavy AI assistants
- You are Developers who need better structure around retrieval pipelines
- You are Projects with lots of internal documents or knowledge bases
- You want to start free
80Choose Mastra if:
- You are TypeScript and Node.js developers who want a structured, production-ready agent framework
- You are Teams building internal AI copilots or customer-facing assistants with full code control
- You are Startups embedding AI capabilities into products that need evals and tracing from day one
- You want to start free
FAQ
- What is the difference between LlamaIndex and Mastra?
- LlamaIndex is an open-source framework focused on connecting llms to structured and unstructured data through indexing, retrieval, and agent patterns. Mastra is open-source typescript framework for building production-ready ai agents and multi-step workflows, with a local studio ui, typed zod schemas, built-in evals, and support for suspend/resume human-in-the-loop flows.
- Which is cheaper, LlamaIndex or Mastra?
- LlamaIndex: Open-source core project; no license fee for core framework use.. Mastra: Fully open source under MIT license. No cloud fees. Self-hosted on your own infrastructure.. LlamaIndex has a free plan. Mastra has a free plan.
- Who is LlamaIndex best for?
- LlamaIndex is best for Teams building data-heavy AI assistants, Developers who need better structure around retrieval pipelines, Projects with lots of internal documents or knowledge bases.
- Who is Mastra best for?
- Mastra is best for TypeScript and Node.js developers who want a structured, production-ready agent framework, Teams building internal AI copilots or customer-facing assistants with full code control, Startups embedding AI capabilities into products that need evals and tracing from day one.