A side-by-side of two agent memory for building AI agents — live GitHub data, languages, and what each is best at.
| Letta (MemGPT) | Mem0 | |
|---|---|---|
| GitHub stars | ★ 23k | ★ 59k |
| Language | Python | Python |
| Category | Agent memory | Agent memory |
| Best for | persistent agents | personalized agents |
| Repository | letta-ai/letta | mem0ai/mem0 |
Letta (MemGPT) and Mem0 are both credible choices. By community traction, Mem0 leads (★ 59k). Pick Letta (MemGPT) for persistent agents; pick Mem0 for personalized agents.
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