A side-by-side of two agent memory for building AI agents — live GitHub data, languages, and what each is best at.
| Letta (MemGPT) | Zep | |
|---|---|---|
| GitHub stars | ★ 23k | ★ 4.7k |
| Language | Python | Go |
| Category | Agent memory | Agent memory |
| Best for | persistent agents | temporal memory |
| Repository | letta-ai/letta | getzep/zep |
Letta (MemGPT) and Zep are both credible choices. By community traction, Letta (MemGPT) leads (★ 23k). Pick Letta (MemGPT) for persistent agents; pick Zep for temporal memory.
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