Arize AX
6.8#7 in machine learning model monitoring softwareFrom $50 a monthFree planWebAPISelf-hosted
VisitArize AX vs Evidently AI
Evidently AI
8.3#2 in machine learning model monitoring softwareFrom $80 a monthFree planWebAPILinuxmacOS
VisitWhat both publish
| Fact | Arize AX | Evidently AI |
|---|---|---|
| Purpose | Arize AX is a platform for continuous improvement of AI agents that turns production behavior into better agents. | Evidently evaluates, tests, and monitors LLMs, RAG applications, AI agents, and machine-learning models. |
| Self-hosting | Self-hosted Arize AX keeps observability data, authentication, APIs and UI inside the customer’s infrastructure, with air-gapped deployment available. | A local or remote Evidently service can be run with filesystem, SQLite, Postgres or other SQL-like storage, plus S3-compatible backends. |
| Support | AX Free includes community troubleshooting support, AX Pro includes email support and AX Enterprise includes dedicated support. | Community support is provided through Discord, GitHub issue reporting, documentation, courses and direct email contact. |
Arize AX plans
- AX FreeFree
- AX Pro$50 a month
- AX EnterprisePriced on request
Evidently AI plans
- DeveloperFree
- Open-sourceFree
- Pro$80 a month
- EnterprisePriced on request
- StartupsPriced on request
Pick Arize AX if…
It suits teams building and operating AI agents that need tracing, evaluations, and experiments. Self-hosted deployment is an option for teams that want observability systems inside their own infrastructure.
Pick Evidently AI if…
It suits teams evaluating or monitoring AI applications and predictive ML models, including those that want open-source tooling or a hosted platform. Its synthetic-data and red-team capabilities may also suit teams assessing adversarial inputs and risks.