Compare frameworks
LangChain vs LlamaIndex vs CrewAI
Every figure below carries the source that reported it and the moment it was observed. Values that failed validation are withheld rather than shown, and a dash means no source we track carries that field for that framework.
| Field | LangChain | LlamaIndex | CrewAI |
|---|---|---|---|
| Stars | 149,181 (highest of the compared values)Synced from sourceCurrent3h ago | 52,842Synced from sourceCurrent3h ago | 60,624Synced from sourceCurrent3h ago |
| downloads | 4,045,383 (highest of the compared values)Synced from sourceCurrent3h ago | 179,093Synced from sourceCurrent3h ago | — |
| Last commit | 2026-11-07Synced from sourceCurrent3h ago | 2026-11-06Synced from sourceCurrent3h ago | 2026-11-08Synced from sourceCurrent3h ago |
| Language | pythonSeeded, unreviewedwritten 2mo ago | pythonSeeded, unreviewedwritten 2mo ago | pythonSeeded, unreviewedwritten 2mo ago |
| Licence | MITSynced from sourceCurrent3h ago | MITSynced from sourceCurrent3h ago | MITSynced from sourceCurrent3h ago |
| Archived | noSynced from sourceCurrent3h ago | noSynced from sourceCurrent3h ago | noSynced from sourceCurrent3h ago |
| Category | orchestrationSeeded, unreviewedwritten 2mo ago | ragSeeded, unreviewedwritten 2mo ago | multi-agentSeeded, unreviewedwritten 2mo ago |
| Contributors | 3751Synced from sourceCurrent3h ago | 2008Synced from sourceCurrent3h ago | 367Synced from sourceCurrent3h ago |
| Forks | 25088Synced from sourceCurrent3h ago | 8532Synced from sourceCurrent3h ago | 9090Synced from sourceCurrent3h ago |
| Maintainer | LangChainSeeded, unreviewedwritten 2mo ago | LlamaIndexSeeded, unreviewedwritten 2mo ago | CrewAISeeded, unreviewedwritten 2mo ago |
| npm downloads, monthly | 13919147Synced from sourceCurrent3h ago | 620141Synced from sourceCurrent3h ago | — |
| npm downloads, weekly | 4045383Synced from sourceCurrent3h ago | 179093Synced from sourceCurrent3h ago | — |
| npm package | langchainSynced from sourceCurrent3h ago | llamaindexSynced from sourceCurrent3h ago | — |
| npm window ends | 2026-11-06Synced from sourceCurrent3h ago | 2026-11-06Synced from sourceCurrent3h ago | — |
| Open issues | 727Synced from sourceCurrent3h ago | 1320Synced from sourceCurrent3h ago | 1196Synced from sourceCurrent3h ago |
| PyPI package | langchainSynced from sourceCurrent3h ago | llama-indexSynced from sourceCurrent3h ago | crewaiSynced from sourceCurrent3h ago |
| PyPI released | 2026-11-04T17:07:20.201103ZSynced from sourceCurrent3h ago | 2026-09-21T16:22:20.056831ZSynced from sourceCurrent3h ago | 2026-11-07T02:18:43.372746ZSynced from sourceCurrent3h ago |
| Requires Python | <4.0.0,>=3.10.0Synced from sourceCurrent3h ago | <4.0,>=3.10Synced from sourceCurrent3h ago | <3.14,>=3.10Synced from sourceCurrent3h ago |
| PyPI version | 1.4.9Synced from sourceCurrent3h ago | 0.14.25Synced from sourceCurrent3h ago | 1.15.37Synced from sourceCurrent3h ago |
| Repository | https://github.com/langchain-ai/langchainSynced from sourceCurrent3h ago | https://github.com/run-llama/llama_indexSynced from sourceCurrent3h ago | https://github.com/crewAIInc/crewAISynced from sourceCurrent3h ago |
Sources: GitHub REST API, npm registry downloads, PyPI registry metadata, pypistats.org downloads. Most recent observation 3h ago. Where a row is marked, ▲ is the highest of the values shown and ▼ the lowest — arithmetic on the figures above, not a ranking or a recommendation. Rows where neither extreme is meaningful are left unmarked rather than given a direction they do not have.
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