Best Galileo Alternatives in 2026

20 apps from AI agent observability tools ranked against Galileo on the same published basis.

  1. 1Galileo vs PetalTrace
  2. 2Galileo vs OpenLIT
  3. 3Galileo vs W&B Weave
  4. 4Galileo vs Opik
  5. 5Galileo vs SigNoz
  6. 6Galileo vs Agenta
  7. 7Galileo vs Arize AX
  8. 8Galileo vs Braintrust
  9. 9Galileo vs Fiddler AI
  10. 11Galileo vs Helicone
  11. 12Galileo vs Laminar
  12. 13Galileo vs Langfuse
  13. 14Galileo vs LangSmith
  14. 15Galileo vs LangWatch
  15. 16Galileo vs LogicGaze
  16. 17Galileo vs Maxim AI
  17. 18Galileo vs MLflow Tracing
  18. 19Galileo vs Respan (formerly Keywords AI)
  19. 20Galileo vs Traccia
  20. 21Galileo vs Traceloop

Galileo alternatives compared

#AppScoreFree planFromRuns on
1PetalTrace6.7Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
2OpenLIT6.6Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
3W&B Weave6.6Free plan$60/moAPI, Linux, Mac, self-hosted, Web, Windows
4Opik6.5Free plan$19/moAPI, Linux, self-hosted, Web
5SigNoz6.5Free plan$19/moAndroid, API, iOS, self-hosted, Web
6Agenta6.4Free plan$29/moAPI, self-hosted, Web
7Arize AX6.4Free plan$50/moAPI, self-hosted, Web
8Braintrust6.4Free plan$249/moAPI, self-hosted, Web
9Fiddler AI6.4Free planFreeAPI, self-hosted, Web
11Helicone6.4Free plan$79/moAPI, self-hosted, Web
12Laminar6.4Free plan$30/moAPI, self-hosted, Web
13Langfuse6.4Free plan$29/moAPI, self-hosted, Web
14LangSmith6.4Free plan$39/moAPI, self-hosted, Web
15LangWatch6.4Free plan€29/moAPI, Linux, self-hosted, Web
16LogicGaze6.4Free planFreeAPI, self-hosted, Web
17Maxim AI6.4Free plan$29/moAPI, self-hosted, Web
18MLflow Tracing6.4Free planFreeAPI, self-hosted, Web
19Respan (formerly Keywords AI)6.4Free plan$16.58/moAPI, self-hosted, Web
20Traccia6.4Free plan$99/moAPI, Web
21Traceloop6.4Free planFreeAPI, self-hosted, Web
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Questions about Galileo alternatives

What is the best alternative to Galileo?

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 Galileo?

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.