Project comparison
Compare adoption, momentum, maintenance health, and project basics before choosing which tool to evaluate deeper.
AI Observability & Evaluation
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
Everything Claude Code has the larger GitHub footprint with 179.5K stars.
Phoenix is currently growing faster at 0 stars this week.
Everything Claude Code has the stronger health score at 75/100.
| Signal | Phoenix | Everything Claude Code |
|---|---|---|
| GitHub stars | 9.6K | 179.5K |
| Weekly growth | 0 | 0 |
| Health score | 74 | 75 |
| Contributors | 174 | 179 |
| Commits per week | 95.5 | 116.0 |
| Open issues | 519 | 1 |
| Language | Python | JavaScript |
| License | NOASSERTION | MIT |
| Last commit | 14h ago | 15h ago |
| Last release | arize-phoenix-v15.6.0 | v1.10.0 |
Get the fastest-growing projects, useful MCP servers, and technical reads in one weekly email.