Best Lunary Alternatives in 2026
Updated
20 apps from AI agent observability tools ranked against Lunary on the same published basis.
- 1Lunary vs PetalTrace
- 2Lunary vs OpenLIT
- 3Lunary vs W&B Weave
- 4Lunary vs Opik
- 5Lunary vs SigNoz
- 6Lunary vs Agenta
- 7Lunary vs Arize AX
- 8Lunary vs Braintrust
- 9Lunary vs Fiddler AI
- 10Lunary vs Galileo
- 11Lunary vs Helicone
- 12Lunary vs HoneyHive
- 13Lunary vs Laminar
- 14Lunary vs Langfuse
- 15Lunary vs LangSmith
- 16Lunary vs LangWatch
- 17Lunary vs LogicGaze
- 18Lunary vs Maxim AI
- 19Lunary vs MLflow Tracing
- 20Lunary vs Respan (formerly Keywords AI)
Lunary 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 |
| 7 | Arize AX | 6.4 | Free plan | $50/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 | HoneyHive | 6.4 | Free plan | Free | API, self-hosted, Web |
| 13 | Laminar | 6.4 | Free plan | $30/mo | API, self-hosted, Web |
| 14 | Langfuse | 6.4 | Free plan | $29/mo | API, self-hosted, Web |
| 15 | LangSmith | 6.4 | Free plan | $39/mo | API, self-hosted, Web |
| 16 | LangWatch | 6.4 | Free plan | €29/mo | API, Linux, self-hosted, Web |
| 17 | LogicGaze | 6.4 | Free plan | Free | API, self-hosted, Web |
| 18 | Maxim AI | 6.4 | Free plan | $29/mo | API, self-hosted, Web |
| 19 | MLflow Tracing | 6.4 | Free plan | Free | API, self-hosted, Web |
| 20 | Respan (formerly Keywords AI) | 6.4 | Free plan | $16.58/mo | API, self-hosted, Web |
Make your app an alternative to Lunary
See the priceThe sponsored alternative slot on this page is labelled Sponsored.
Questions about Lunary alternatives
What is the best alternative to Lunary?
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 Lunary?
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.