Both sit in the framework layer with similar commercial terms, so the practical split is language: CrewAI targets Python and LlamaIndex targets Python.
Role-based crews of agents with delegation between them.
Data-first framework — ingestion, indexing and RAG-heavy agents.
| CrewAI | LlamaIndex | |
|---|---|---|
| Licence | Open source | Open source |
| Pricing | freemium | freemium |
| Self-hostable | Yes | Yes |
| Languages | Python | Python, TypeScript |
| Install | pip install crewai | pip install llama-index |
| Keys required | None | None |
Both sit in the framework layer with similar commercial terms, so the practical split is language: CrewAI targets Python and LlamaIndex targets Python. CrewAI: Role-based crews of agents with delegation between them. LlamaIndex: Data-first framework — ingestion, indexing and RAG-heavy agents.
CrewAI can run on your own infrastructure. LlamaIndex can run on your own infrastructure.
CrewAI is open source (freemium). LlamaIndex is open source (freemium).
Every page here answers to Accept: text/markdown and returns the same content at roughly a tenth the tokens. No separate site, no toggle — same URL.
curl -s -H "Accept: text/markdown" https://newagent.build/compare/crewai-vs-llamaindex