Compare providers
Pick up to three. Scores are curated estimates on a 0–10 scale. Lock-in: higher = worse.
| Dimension | Braintrust | Arize Phoenix |
|---|---|---|
| Overall | 8.2 | 8.4 |
| Capability fit | 9.2 | 8.6 |
| Price / performance | 7.5 | 9.0 |
| Latency / reliability | 8.6 | 8.2 |
| Developer & agent DX | 8.8 | 8.0 |
| Privacy / data retention | 8.0 | 8.5 |
| Lock-in risk (higher = worse) | 5.0 | 2.5 |
| Maturity / track record | 8.2 | 8.6 |
| Pricing | Eval-first platform; data-based pricing with unlimited seats on many plans; strong CI eval story. | Open-source Phoenix free to self-host; Arize AX cloud paid; OpenTelemetry-friendly. |