HowToBuild- License
- MIT
- Cost
- Open Source
- Self-host
- Yes
Overview
LlamaIndex provides ingestion, retrieval, indexing, agent, and evaluation components across Python and TypeScript ecosystems.
Why it is interesting
Why pay attention
It is worth evaluating when an AI product needs a structured data and retrieval layer beyond direct model calls.
Editorial status
Included for comparison and context.
Best for
- AI applications centered on retrieval and private data sources
Not ideal for
- Simple prompts that need only a model provider SDK
Open source & pricing
Open Source
Core frameworks are open source; managed LlamaCloud services have separate plans.
GitHub momentum
★ 52,776
- Last 7 days
- +112
- Last 30 days
- +388
- Evidence
- 10/3/2026–11/2/2026 · complete window
Included in stacks
See it in context.
Sources checked
Official documentation, repository, license, and product factsmaintainer · Sep 4, 2026