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Project comparison
Letta vs Hermes Agent
Compare adoption, momentum, maintenance health, and project basics before choosing which tool to evaluate deeper.
Letta
Letta is the platform for building stateful agents: AI with advanced memory that can learn and self-improve over time.
22.6K
Stars
0
Weekly
68/100
Health
Hermes Agent
The agent that grows with you
144.7K
Stars
0
Weekly
80/100
Health
Quick Take
Adoption
Hermes Agent has the larger GitHub footprint with 144.7K stars.
Momentum
Letta is currently growing faster at 0 stars this week.
Maintenance
Hermes Agent has the stronger health score at 80/100.
Side-by-side Metrics
| Signal | Letta | Hermes Agent |
|---|---|---|
| GitHub stars | 22.6K | 144.7K |
| Weekly growth | 0 | 0 |
| Health score | 68 | 80 |
| Contributors | 153 | 1.0K |
| Commits per week | 32.3 | 610.4 |
| Open issues | 71 | 10.2K |
| Language | Python | Python |
| License | Apache-2.0 | MIT |
| Last commit | 29d ago | 14h ago |
| Last release | 0.16.7 | v2026.5.7 |
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