Frameworks

CrewAI vs LlamaIndex

TL;DR

How CrewAI and LlamaIndex compare on real-world demand, licensing, adoption and positioning — straight from the Agent Reality Index.

Agent Reality Index

CrewAI#4 in Frameworks · 60.0 / 100 LlamaIndex#3 in Frameworks · 61.7 / 100

Dimension	CrewAI	LlamaIndex
Agent Reality Index	60.0 / 100 (#4)	61.7 / 100 (#3)
Monthly search demand	~7.6k/mo	~4.9k/mo
Licensing	Open-source	Open-source
Developer adoption	60k★ on GitHub	56k★ on GitHub
Positioning	High-level / opinionated · Multi-agent team	High-level / opinionated · Single-agent

The verdict

CrewAI and LlamaIndex are neck-and-neck on the Agent Reality Index (60.0 vs 61.7). The gap is small enough that the right pick comes down to fit rather than popularity: CrewAI is open-source, while LlamaIndex is open-source. Use the positioning row above to choose by how you actually want to work.

Figures auto-generated from the Agent Reality Index and refreshed monthly. How the index is built →

Frequently asked questions

What is the difference between CrewAI and LlamaIndex?

How CrewAI and LlamaIndex compare on real-world demand, licensing, adoption and positioning — straight from the Agent Reality Index.

Is CrewAI or LlamaIndex better?

How do CrewAI and LlamaIndex compare on the Agent Reality Index?

On the Agent Reality Index, CrewAI scores 60.0 of 100 (ranked #4 in Frameworks) and LlamaIndex scores 61.7 of 100 (#3 in Frameworks). The index weights real-world demand most heavily and refreshes monthly.