LlamaIndex vs Mastra: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for LlamaIndex and Mastra side by side. This page compares data; it is not a hands-on review.
On the data: On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
LlamaIndex
Data framework for LLM applications
Mastra
Build AI-powered applications and agents with a modern TypeScript stack.
Best for you if:
- • You want to build AI-powered applications and agents with a modern TypeScript stack
| At a Glance | LlamaIndex | Mastra |
|---|---|---|
Starts at | Free plan | Free plan |
Category | Developer Tools AI Assistants | AI Agents Developer Tools |
Rating | n/a | n/a |
Free plan | Yes | Yes |
Choose LlamaIndex or Mastra?
Choose LlamaIndex if
- You need developer tools features specifically.
Choose Mastra if
- You want to build AI-powered applications and agents with a modern TypeScript stack
In-Depth Analysis
LlamaIndex
Data framework for LLM applications
LlamaIndex offers a very generous open-source tier, providing a full LLM framework and RAG capabilities for free.
Strengths
- Pro: Great for RAG
- Pro: Easy data integration
- Pro: Good documentation
Weaknesses
- Con: Learning curve
- Con: Can be slow
Key features
Mastra
Build AI-powered applications and agents with a modern TypeScript stack.
Mastra's pricing is extremely generous, offering a full 'Open Source' tier completely free.
Strengths
- Pro: Open-source AI framework
- Pro: TypeScript-native design
- Pro: Good for AI workflows
- Pro: Active development
Weaknesses
- Con: Requires developer knowledge
- Con: Documentation still evolving
- Con: Smaller community than alternatives
Key features
Plans and prices: LlamaIndex vs Mastra
| Tool | Plans and prices | Source |
|---|---|---|
| LlamaIndex |
| llamaindex.ai/pricing read Nov 10, 2026 |
| Mastra |
| github.com/pricing read Oct 30, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on LlamaIndex pricing and Mastra pricing.
Key Takeaways
LlamaIndex
- Worth considering for developer tools
Mastra
- Choose Mastra if you want to build AI-powered applications and agents with a modern TypeScript stack
What the data shows
On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do LlamaIndex and Mastra compare in 2026?
On the data below the two are close or not directly comparable, so we do not name a winner for this pair. Both have a free plan.
What are LlamaIndex and Mastra used for?
LlamaIndex: Data framework for LLM applications. Mastra: Build AI-powered applications and agents with a modern TypeScript stack.
What does LlamaIndex cost vs Mastra?
LlamaIndex has no public paid-plan price on file. Mastra has no public paid-plan price on file. Prices read on the vendors' pricing pages, latest check Nov 10, 2026.
What's the main difference between LlamaIndex and Mastra?
LlamaIndex's main strength: great for RAG. Mastra's main strength: open-source AI framework.
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