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