Compare frameworks
LangChain vs Haystack 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 | Haystack | CrewAI |
|---|---|---|---|
| Stars | 146,956 (highest of the compared values)Synced from sourceCurrent2h ago | 26,584Synced from sourceCurrent2h ago | 58,958Synced from sourceCurrent2h ago |
| downloads | 2,026,447Synced from sourceCurrent2h ago | — | — |
| Last commit | 2026-09-24Synced from sourceCurrent2h ago | 2026-09-23Synced from sourceCurrent2h ago | 2026-09-23Synced from sourceCurrent2h ago |
| Language | pythonSeeded, unreviewedwritten 1mo ago | pythonSeeded, unreviewedwritten 1mo ago | pythonSeeded, unreviewedwritten 1mo ago |
| Licence | MITSynced from sourceCurrent2h ago | Apache-2.0Synced from sourceCurrent2h ago | MITSynced from sourceCurrent2h ago |
| Archived | noSynced from sourceCurrent2h ago | noSynced from sourceCurrent2h ago | noSynced from sourceCurrent2h ago |
| Category | orchestrationSeeded, unreviewedwritten 1mo ago | ragSeeded, unreviewedwritten 1mo ago | multi-agentSeeded, unreviewedwritten 1mo ago |
| Contributors | 3740Synced from sourceCurrent2h ago | 475Synced from sourceCurrent2h ago | 340Synced from sourceCurrent2h ago |
| Forks | 24587Synced from sourceCurrent2h ago | 3176Synced from sourceCurrent2h ago | 8560Synced from sourceCurrent2h ago |
| Maintainer | LangChainSeeded, unreviewedwritten 1mo ago | deepsetSeeded, unreviewedwritten 1mo ago | CrewAISeeded, unreviewedwritten 1mo ago |
| npm downloads, monthly | 10553700Synced from sourceCurrent2h ago | — | — |
| npm downloads, weekly | 2026447Synced from sourceCurrent2h ago | — | — |
| npm package | langchainSynced from sourceCurrent2h ago | — | — |
| npm window ends | 2026-09-21Synced from sourceCurrent2h ago | — | — |
| Open issues | 561Synced from sourceCurrent2h ago | 168Synced from sourceCurrent2h ago | 463Synced from sourceCurrent2h ago |
| PyPI package | langchainSynced from sourceCurrent2h ago | haystack-aiSynced from sourceCurrent2h ago | crewaiSynced from sourceCurrent2h ago |
| PyPI released | 2026-09-18T17:31:10.056247ZSynced from sourceCurrent2h ago | 2026-09-03T09:27:43.312258ZSynced from sourceCurrent2h ago | 2026-09-16T22:10:41.471882ZSynced from sourceCurrent2h ago |
| Requires Python | <4.0.0,>=3.10.0Synced from sourceCurrent2h ago | >=3.10Synced from sourceCurrent2h ago | <3.14,>=3.10Synced from sourceCurrent2h ago |
| PyPI version | 1.4.2Synced from sourceCurrent2h ago | 3.1.1Synced from sourceCurrent2h ago | 1.15.22Synced from sourceCurrent2h ago |
| Repository | https://github.com/langchain-ai/langchainSynced from sourceCurrent2h ago | https://github.com/deepset-ai/haystackSynced from sourceCurrent2h ago | https://github.com/crewAIInc/crewAISynced from sourceCurrent2h ago |
Sources: GitHub REST API, npm registry downloads, PyPI registry metadata, pypistats.org downloads. Most recent observation 2h 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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