Arize AI review

Updated September 28, 2026 · DeployCue Editorial Team · Facts checked September 26, 2026

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Our verdict

Arize AI suits teams that want one subscription covering LLM gateway routing rather than per-token billing, and it holds the entry plan at no cost. Founded in 2020 and based in the United States, it adds a free tier and bring-your-own-key access on top of the paid monthly and custom-priced plans.

Key facts

Best for
Teams wanting a free entry plan, monthly billing and their own provider keys.
Fee model
Freemium subscription: AX Free $0, AX Pro $50/month, AX Enterprise custom (Source, checked September 26, 2026)
Bring your own key
Yes (Source, checked September 26, 2026)
Free tier
Yes (Source, checked September 26, 2026)
Legal entity
Arize AI, Inc (Source, checked September 26, 2026)
Headquarters
United States (Source, checked September 26, 2026)
Founded
2020 (Source, checked September 26, 2026)
Support channels
Email, Community, Help-centre (Source, checked September 26, 2026)
Official website
arize.com

Apps and profiles

Pros and cons

Pros

  • A free tier sits next to a monthly plan and a custom-priced tier, so a team can start without a bill.
  • Bring your own key is supported, so you can use credentials from providers you already pay.
  • Support covers email, community and help centre, combining email with self-service and community answers.
  • A subscription rather than per-token billing, in a group where hourly billing leads at 71.4%.

Cons

  • Support runs on email, community and help centre only, with no live chat or phone listed.
  • The fee model is a subscription rather than a per-token charge, so the plans do not price by usage.
  • The fee model spans a free plan, a monthly subscription and a custom-priced AX Enterprise tier, so the top of the range is priced to order.

Ready to try Arize AI?

Scored 9.2 / 10 by DeployCue.

Who it suits

  • Teams already paying model providers directly that want to route through their own keys.
  • Small teams testing gateway routing on a free plan before a monthly subscription.
  • US-based buyers who want a subscription invoice from a vendor founded in 2020.

Who should look elsewhere

  • Self-hosting fans, since LiteLLM is open source and self-host free forever under an MIT licence.
  • Buyers who want a flat monthly subscription or per-token billing, as Salad sells both.
  • Teams that prefer prepaid credits and a per-user private network, which is how Supascale AI bills.

Frequently asked questions

What does Arize AI cost to get started?+

Pricing is a freemium subscription: AX Free is free, AX Pro is a monthly subscription, and AX Enterprise is priced to fit. Across the gateways in this comparison, 81.7% offer a free tier, so Arize AI sits with the majority on entry cost.

What plan tiers does Arize AI sell?+

Three tiers sit under the pricing of Arize AI, Inc: AX Free, which costs nothing, AX Pro on a monthly subscription, and AX Enterprise at a custom price. Payment runs by subscription rather than by token, so the entry decision is about plan level, not usage volume.

Can I use my own model provider keys?+

Yes. Bring your own key is supported, so you can route through providers you already pay for and manage those credentials yourself. 70% of the gateways in this comparison allow bring your own key, putting Arize AI on the larger side of that split.

Is the AX Pro price introductory or recurring?+

The AX Pro figure is a monthly subscription, so it reads as the recurring charge rather than a promotional opening period, and AX Enterprise is priced to fit rather than published. Monthly billing leads the billing models in this comparison, with a share of 90.8%.

How does the entry price compare with other gateways?+

AX Free costs nothing, while the median entry price across the gateways in this comparison is €5.83 and the lowest listed entry price is €0. Arize AI therefore opens at the floor of the field rather than near the middle.

How do I get help from Arize AI?+

Support runs on email, community and help centre, covering email, a community and a help centre rather than live chat or phone. Help centres and email are the most common support routes among the gateways in this group, so Arize AI follows the common pattern.

Who is behind Arize AI and where is it based?+

The provider is Arize AI, Inc, founded in 2020 and headquartered in the United States. It runs the AX plan family, with a free tier and a monthly subscription tier, and is one of the gateways in this comparison that charges by plan rather than by token.

Sources

  • arize.com/press/arize-ai-secures-70m-series-c-to-fix-ais-... checked September 26, 2026

    Backs: Founded, Headquarters

    “Since launching in 2020, Arize has become an AI observability and evaluation backbone”

  • arize.com/pricing checked September 26, 2026

    Backs: Bring your own key, Fee model, Free tier, Support channels

    “Customize AI Provider Arize-managed Arize-managed Bring your own key + Arize-managed”

  • arize.com/privacy-policy checked September 26, 2026

    Backs: Legal entity

    “ARIZE AI, INC Privacy Policy”

Compiled from 3 source pages, checked September 26, 2026. We did not open an account.

Not confirmed yet: Providers routed.

Arize AI

Teams wanting a free entry plan, monthly billing and their own provider keys.

9.2/10See alternatives