Best Arthur Alternatives in 2026
Updated
20 platforms from model monitoring software ranked against Arthur on the same published basis.
- 1Arthur vs Laminar
- 2Arthur vs Langfuse
- 3Arthur vs Memoturn
- 4Arthur vs Opik
- 5Arthur vs Qualdo-MQX
- 6Arthur vs Arize AX
- 8Arthur vs Braintrust
- 9Arthur vs Deepchecks
- 10Arthur vs Evidently AI
- 11Arthur vs Fiddler AI
- 12Arthur vs Galileo
- 13Arthur vs Helicone
- 14Arthur vs HoneyHive
- 15Arthur vs LangSmith
- 16Arthur vs LangWatch
- 17Arthur vs Maxim AI
- 18Arthur vs NannyML
- 19Arthur vs OpenLIT
- 20Arthur vs W&B Weave
- 21Arthur vs Arize Phoenix
Arthur alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Laminar | 7.4 | Free plan | $30/mo | API, self-hosted, Web |
| 2 | Langfuse | 7.4 | Free plan | $29/mo | API, self-hosted, Web |
| 3 | Memoturn | 7.4 | Free plan | Free | API, Linux, self-hosted, Web |
| 4 | Opik | 7.4 | Free plan | $19/mo | API, Linux, self-hosted, Web |
| 5 | Qualdo-MQX | 7.4 | Free plan | $79/mo | API, self-hosted, Web |
| 6 | Arize AX | 7.3 | Free plan | $50/mo | API, self-hosted, Web |
| 8 | Braintrust | 7.3 | Free plan | $249/mo | API, self-hosted, Web |
| 9 | Deepchecks | 7.3 | Free plan | Free | API, Linux, self-hosted, Web |
| 10 | Evidently AI | 7.3 | Free plan | $80/mo | API, Linux, Mac, self-hosted, Web, Windows |
| 11 | Fiddler AI | 7.3 | Free plan | Free | API, self-hosted, Web |
| 12 | Galileo | 7.3 | Free plan | $100/mo | API, self-hosted, Web |
| 13 | Helicone | 7.3 | Free plan | $79/mo | API, self-hosted, Web |
| 14 | HoneyHive | 7.3 | Free plan | Free | API, self-hosted, Web |
| 15 | LangSmith | 7.3 | Free plan | $39/mo | API, self-hosted, Web |
| 16 | LangWatch | 7.3 | Free plan | €29/mo | API, Linux, self-hosted, Web |
| 17 | Maxim AI | 7.3 | Free plan | $29/mo | API, self-hosted, Web |
| 18 | NannyML | 7.3 | Free plan | $399/mo | API, Linux, self-hosted, Web |
| 19 | OpenLIT | 7.3 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 20 | W&B Weave | 7.3 | Free plan | $60/mo | API, Linux, Mac, self-hosted, Web, Windows |
| 21 | Arize Phoenix | 7.2 | Free plan | Free | API, self-hosted, Web |
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Questions about Arthur alternatives
What is the best alternative to Arthur?
Laminar, number 1 in model monitoring software with a score of 7.4 out of 10. The others here: Langfuse, Memoturn, Opik and 16 more.
What is the best free alternative to Arthur?
Laminar 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.