Best Arthur Alternatives in 2026
Updated
20 tools from model monitoring software ranked against Arthur on the same published basis.
- 1Arthur vs Evidently AI
- 2Arthur vs W&B Weave
- 3Arthur vs NannyML
- 4Arthur vs Opik
- 5Arthur vs Deepchecks
- 6Arthur vs OpenLIT
- 7Arthur vs Qualdo-MQX
- 8Arthur vs Helicone
- 9Arthur vs Maxim AI
- 10Arthur vs Memoturn
- 11Arthur vs SUPERWISE
- 12Arthur vs LangWatch
- 14Arthur vs Braintrust
- 15Arthur vs Fiddler AI
- 16Arthur vs Galileo
- 17Arthur vs Laminar
- 18Arthur vs Langfuse
- 19Arthur vs LangSmith
- 20Arthur vs Arize AX
- 21Arthur vs HoneyHive
Arthur alternatives compared
| # | Tool | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Evidently AI | 7.9 | Free plan | $80/mo | API, Linux, Mac, self-hosted, Web, Windows |
| 2 | W&B Weave | 7.9 | Free plan | $60/mo | API, Linux, Mac, self-hosted, Web, Windows |
| 3 | NannyML | 7.5 | Free plan | $399/mo | API, Linux, self-hosted, Web |
| 4 | Opik | 7.5 | Free plan | $19/mo | API, Linux, self-hosted, Web |
| 5 | Deepchecks | 7.4 | Free plan | Free | API, Linux, self-hosted, Web |
| 6 | OpenLIT | 7.4 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 7 | Qualdo-MQX | 7.4 | Free plan | $79/mo | API, self-hosted, Web |
| 8 | Helicone | 7.3 | Free plan | $79/mo | API, self-hosted, Web |
| 9 | Maxim AI | 7.3 | Free plan | $29/mo | API, self-hosted, Web |
| 10 | Memoturn | 7.3 | Free plan | Free | API, Linux, self-hosted, Web |
| 11 | SUPERWISE | 7.2 | No | $10/mo | API, Linux, Mac, self-hosted, Web, Windows |
| 12 | LangWatch | 7.1 | Free plan | €29/mo | API, Linux, self-hosted, Web |
| 14 | Braintrust | 7.0 | Free plan | $249/mo | API, self-hosted, Web |
| 15 | Fiddler AI | 7.0 | Free plan | Free | API, self-hosted, Web |
| 16 | Galileo | 7.0 | Free plan | $100/mo | API, self-hosted, Web |
| 17 | Laminar | 7.0 | Free plan | $30/mo | API, self-hosted, Web |
| 18 | Langfuse | 7.0 | Free plan | $29/mo | API, self-hosted, Web |
| 19 | LangSmith | 7.0 | Free plan | $39/mo | API, self-hosted, Web |
| 20 | Arize AX | 6.9 | Free plan | $50/mo | API, self-hosted, Web |
| 21 | HoneyHive | 6.9 | Free plan | Free | API, self-hosted, Web |
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Questions about Arthur alternatives
What is the best alternative to Arthur?
Evidently AI, number 1 in model monitoring software with a score of 7.9 out of 10. The others here: W&B Weave, NannyML, Opik and 16 more.
What is the best free alternative to Arthur?
Evidently AI is the best-ranked alternative with a free plan. 19 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, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.