# Arize Phoenix vs Baserun (slim)

> Arize Phoenix has a score of 75.6 (BB) against Baserun's 7.3 (F). Both do obs traces. The largest gap is agent ergonomics, 85 points. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/arize-phoenix-vs-baserun.md (~1,500 tokens) · this version ~330 tokens · JSON https://www.anchorterminal.com/compare/arize-phoenix-vs-baserun.json · canonical https://www.anchorterminal.com/compare/arize-phoenix-vs-baserun
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05

Arize Phoenix has a score of 75.6 (BB) against Baserun's 7.3 (F). Both do obs traces. The largest gap is agent ergonomics, 85 points.

- Arize Phoenix: BB 75.6, rank #32 of 452 · https://www.anchorterminal.com/tools/arize-phoenix.min.md
- Baserun: F 7.3, rank retired, not ranked · https://www.anchorterminal.com/tools/baserun.min.md
- Pick Arize Phoenix for reliability (+77), schema & documentation (+73), agent ergonomics (+85), security & auth (+51), payments & pricing (+60), maintenance & community (+84), transparency & trust (+40). Pick Baserun for nothing in particular.

| Category | Arize Phoenix | Baserun |
| --- | --- | --- |
| Reliability (16%) | 77 | 0 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 88 | 15 |
| Agent ergonomics (13%) | 90 | 5 |
| Security & auth (14%) | 56 | 5 |
| Payments & pricing (10%) | 60 | 0 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 84 | 0 |
| Transparency & trust (7%) | 76 | 36 |