Best Arize AX Alternatives in 2026
Updated
20 apps from AI agent observability tools ranked against Arize AX on the same published basis.
- 1Arize AX vs PetalTrace
- 2Arize AX vs OpenLIT
- 3Arize AX vs W&B Weave
- 4Arize AX vs Opik
- 5Arize AX vs SigNoz
- 6Arize AX vs Agenta
- 8Arize AX vs Braintrust
- 9Arize AX vs Fiddler AI
- 10Arize AX vs Galileo
- 11Arize AX vs Helicone
- 12Arize AX vs Laminar
- 13Arize AX vs Langfuse
- 14Arize AX vs LangSmith
- 15Arize AX vs LangWatch
- 16Arize AX vs LogicGaze
- 17Arize AX vs Maxim AI
- 18Arize AX vs MLflow Tracing
- 19Arize AX vs Respan (formerly Keywords AI)
- 20Arize AX vs Traccia
- 21Arize AX vs Traceloop
Arize AX alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | PetalTrace | 6.7 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 2 | OpenLIT | 6.6 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 3 | W&B Weave | 6.6 | Free plan | $60/mo | API, Linux, Mac, self-hosted, Web, Windows |
| 4 | Opik | 6.5 | Free plan | $19/mo | API, Linux, self-hosted, Web |
| 5 | SigNoz | 6.5 | Free plan | $19/mo | Android, API, iOS, self-hosted, Web |
| 6 | Agenta | 6.4 | Free plan | $29/mo | API, self-hosted, Web |
| 8 | Braintrust | 6.4 | Free plan | $249/mo | API, self-hosted, Web |
| 9 | Fiddler AI | 6.4 | Free plan | Free | API, self-hosted, Web |
| 10 | Galileo | 6.4 | Free plan | $100/mo | API, self-hosted, Web |
| 11 | Helicone | 6.4 | Free plan | $79/mo | API, self-hosted, Web |
| 12 | Laminar | 6.4 | Free plan | $30/mo | API, self-hosted, Web |
| 13 | Langfuse | 6.4 | Free plan | $29/mo | API, self-hosted, Web |
| 14 | LangSmith | 6.4 | Free plan | $39/mo | API, self-hosted, Web |
| 15 | LangWatch | 6.4 | Free plan | €29/mo | API, Linux, self-hosted, Web |
| 16 | LogicGaze | 6.4 | Free plan | Free | API, self-hosted, Web |
| 17 | Maxim AI | 6.4 | Free plan | $29/mo | API, self-hosted, Web |
| 18 | MLflow Tracing | 6.4 | Free plan | Free | API, self-hosted, Web |
| 19 | Respan (formerly Keywords AI) | 6.4 | Free plan | $16.58/mo | API, self-hosted, Web |
| 20 | Traccia | 6.4 | Free plan | $99/mo | API, Web |
| 21 | Traceloop | 6.4 | Free plan | Free | API, self-hosted, Web |
Make your app an alternative to Arize AX
See the priceThe sponsored alternative slot on this page is labelled Sponsored.
Questions about Arize AX alternatives
What is the best alternative to Arize AX?
PetalTrace, number 1 in AI agent observability tools with a score of 6.7 out of 10. The others here: OpenLIT, W&B Weave, Opik and 16 more.
What is the best free alternative to Arize AX?
PetalTrace is the best-ranked alternative with a free plan. 20 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.