LlamaIndex vs CrewAI
Side-by-side from the Top 11 rankings of The 11 Best RAG Frameworks and The 11 Best AI Agent Builders. Last verified May 31, 2026.
The short answer
LlamaIndex ranks higher on Top 11 (#2 vs #3) for Developers shipping RAG pipelines into production / Developers building autonomous AI agents and workflows. A data-centric framework excelling at advanced indexing and retrieval strategies for high-accuracy RAG.
At a glance
| LlamaIndex | CrewAI | |
|---|---|---|
| Top 11 rank | #2 / The 11 Best RAG Frameworks | #3 / The 11 Best AI Agent Builders |
| Score (out of 9.4) | 9.2 | 8.9 |
| Best for | Best for data-centric RAG | Best for multi-agent collaboration |
| Pricing | Free (Open Source) | Free (Open Source) |
| HQ | San Francisco, USA | San Francisco, USA |
| Founded | 2022 | 2023 |
LlamaIndex
A data-centric framework excelling at advanced indexing and retrieval strategies for high-accuracy RAG.
www.llamaindex.ai/CrewAI
An intuitive, powerful framework for orchestrating teams of collaborating AI agents.
www.crewai.com/Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.