Best Kosmoy AI Observability Alternatives in 2026
Updated
20 platforms from AI agent observability tools ranked against Kosmoy AI Observability on the same published basis.
- 1Kosmoy AI Observability vs PetalTrace
- 2Kosmoy AI Observability vs Traccia
- 3Kosmoy AI Observability vs Agenta
- 4Kosmoy AI Observability vs Arize AX
- 5Kosmoy AI Observability vs Braintrust
- 6Kosmoy AI Observability vs Fiddler AI
- 7Kosmoy AI Observability vs Galileo
- 8Kosmoy AI Observability vs Helicone
- 9Kosmoy AI Observability vs Hexel
- 10Kosmoy AI Observability vs Laminar
- 11Kosmoy AI Observability vs Langfuse
- 12Kosmoy AI Observability vs LangSmith
- 13Kosmoy AI Observability vs LangWatch
- 14Kosmoy AI Observability vs LogicGaze
- 15Kosmoy AI Observability vs Maxim AI
- 16Kosmoy AI Observability vs MLflow Tracing
- 17Kosmoy AI Observability vs OpenLIT
- 18Kosmoy AI Observability vs Opik
- 19Kosmoy AI Observability vs Respan (formerly Keywords AI)
- 20Kosmoy AI Observability vs SigNoz
Kosmoy AI Observability alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | PetalTrace | 7.4 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 2 | Traccia | 7.4 | Free plan | $99/mo | API, Web |
| 3 | Agenta | 7.3 | Free plan | $29/mo | API, self-hosted, Web |
| 4 | Arize AX | 7.3 | Free plan | $50/mo | API, self-hosted, Web |
| 5 | Braintrust | 7.3 | Free plan | $249/mo | API, self-hosted, Web |
| 6 | Fiddler AI | 7.3 | Free plan | Free | API, self-hosted, Web |
| 7 | Galileo | 7.3 | Free plan | $100/mo | API, self-hosted, Web |
| 8 | Helicone | 7.3 | Free plan | $79/mo | API, self-hosted, Web |
| 9 | Hexel | 7.3 | Free plan | Free | API |
| 10 | Laminar | 7.3 | Free plan | $30/mo | API, self-hosted, Web |
| 11 | Langfuse | 7.3 | Free plan | $29/mo | API, self-hosted, Web |
| 12 | LangSmith | 7.3 | Free plan | $39/mo | API, self-hosted, Web |
| 13 | LangWatch | 7.3 | Free plan | €29/mo | API, Linux, self-hosted, Web |
| 14 | LogicGaze | 7.3 | Free plan | Free | API, self-hosted, Web |
| 15 | Maxim AI | 7.3 | Free plan | $29/mo | API, self-hosted, Web |
| 16 | MLflow Tracing | 7.3 | Free plan | Free | API, self-hosted, Web |
| 17 | OpenLIT | 7.3 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 18 | Opik | 7.3 | Free plan | $19/mo | API, Linux, self-hosted, Web |
| 19 | Respan (formerly Keywords AI) | 7.3 | Free plan | $16.58/mo | API, self-hosted, Web |
| 20 | SigNoz | 7.3 | Free plan | $19/mo | Android, API, iOS, self-hosted, Web |
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Questions about Kosmoy AI Observability alternatives
What is the best alternative to Kosmoy AI Observability?
PetalTrace, number 1 in AI agent observability tools with a score of 7.4 out of 10. The others here: Traccia, Agenta, Arize AX and 16 more.
What is the best free alternative to Kosmoy AI Observability?
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 on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.