LlamaIndex
Data framework focused on RAG—indexes, readers, retrievers, and workflows.
77
Hero Score
Popularity
80
Performance
85
Ecosystem
75
Maturity
69
Dev Experience
75
⭐ 49,818 stars⬇ 2.5M downloads/wkFirst release: Aug 2022Last release: May 2026
Async Support: YesPlugin Extensions: HighSpeed: FastDoc Quality: HighLearning Curve: Medium
Pros
- • Strong RAG primitives & connectors
- • Many provider/vector DB integrations
- • Clear, practical examples
Cons
- • Many subpackages to navigate
- • Feature surface can be overwhelming
- • Version pinning sometimes required