Project comparison
Compare adoption, momentum, maintenance health, and project basics before choosing which tool to evaluate deeper.
AI Observability & Evaluation
The agent that grows with you
Hermes Agent has the larger GitHub footprint with 144.7K stars.
Phoenix is currently growing faster at 0 stars this week.
Hermes Agent has the stronger health score at 80/100.
| Signal | Phoenix | Hermes Agent |
|---|---|---|
| GitHub stars | 9.6K | 144.7K |
| Weekly growth | 0 | 0 |
| Health score | 74 | 80 |
| Contributors | 174 | 1.0K |
| Commits per week | 95.5 | 610.4 |
| Open issues | 519 | 10.2K |
| Language | Python | Python |
| License | NOASSERTION | MIT |
| Last commit | 15h ago | 15h ago |
| Last release | arize-phoenix-v15.6.0 | v2026.5.7 |
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