Compare frameworks
Letta vs LangGraph
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 | Letta | LangGraph |
|---|---|---|
| Stars | 25,382Synced from sourceCurrent3h ago | 44,631 (highest of the compared values)Synced from sourceCurrent3h ago |
| downloads | — | 4,881,657Synced from sourceCurrent3h ago |
| Last commit | 2026-10-18Synced from sourceCurrent3h ago | 2026-11-08Synced from sourceCurrent3h ago |
| Language | pythonSeeded, unreviewedwritten 2mo ago | pythonSeeded, unreviewedwritten 2mo ago |
| Licence | Apache-2.0Synced from sourceCurrent3h ago | MITSynced from sourceCurrent3h ago |
| Archived | noSynced from sourceCurrent3h ago | noSynced from sourceCurrent3h ago |
| Category | memorySeeded, unreviewedwritten 2mo ago | orchestrationSeeded, unreviewedwritten 2mo ago |
| Contributors | 155Synced from sourceCurrent3h ago | 294Synced from sourceCurrent3h ago |
| Forks | 2667Synced from sourceCurrent3h ago | 7690Synced from sourceCurrent3h ago |
| Maintainer | LettaSeeded, unreviewedwritten 2mo ago | LangChainSeeded, unreviewedwritten 2mo ago |
| npm downloads, monthly | — | 16705433Synced from sourceCurrent3h ago |
| npm downloads, weekly | — | 4881657Synced from sourceCurrent3h ago |
| npm package | — | @langchain/langgraphSynced from sourceCurrent3h ago |
| npm window ends | — | 2026-11-06Synced from sourceCurrent3h ago |
| Open issues | 0Synced from sourceCurrent3h ago | 475Synced from sourceCurrent3h ago |
| PyPI package | lettaSynced from sourceCurrent3h ago | langgraphSynced from sourceCurrent3h ago |
| PyPI released | 2026-10-12T20:47:35.858621ZSynced from sourceCurrent3h ago | 2026-11-05T02:20:37.999716ZSynced from sourceCurrent3h ago |
| Requires Python | >=3.9Synced from sourceCurrent3h ago | >=3.10Synced from sourceCurrent3h ago |
| PyPI version | 0.34.12Synced from sourceCurrent3h ago | 1.2.20Synced from sourceCurrent3h ago |
| Repository | https://github.com/letta-ai/lettaSynced from sourceCurrent3h ago | https://github.com/langchain-ai/langgraphSynced 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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