# Arize Phoenix vs Helicone AI Gateway + MCP (slim)

> Arize Phoenix has a score of 75.6 (BB) against Helicone AI Gateway + MCP's 47.1 (D). Both do obs traces. The largest gap is payments & pricing, 30 points. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/arize-phoenix-vs-helicone.md (~1,650 tokens) · this version ~380 tokens · JSON https://www.anchorterminal.com/compare/arize-phoenix-vs-helicone.json · canonical https://www.anchorterminal.com/compare/arize-phoenix-vs-helicone
- 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 Helicone AI Gateway + MCP's 47.1 (D). Both do obs traces. The largest gap is payments & pricing, 30 points.

- Arize Phoenix: BB 75.6, rank #32 of 452 · https://www.anchorterminal.com/tools/arize-phoenix.min.md
- Helicone AI Gateway + MCP: D 47.1, rank #387 of 452 · https://www.anchorterminal.com/tools/helicone.min.md
- Pick Arize Phoenix for reliability (+27), schema & documentation (+19), agent ergonomics (+20), security & auth (+6), payments & pricing (+30), maintenance & community (+18), transparency & trust (+5). Pick Helicone AI Gateway + MCP for nothing in particular.

| Category | Arize Phoenix | Helicone AI Gateway + MCP |
| --- | --- | --- |
| Reliability (16%) | 77 | 50 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 88 | 69 |
| Agent ergonomics (13%) | 90 | 70 |
| Security & auth (14%) | 56 | 50 |
| Payments & pricing (10%) | 60 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 84 | 66 |
| Transparency & trust (7%) | 76 | 71 |