Price checkMonthly
AX FreeFreeAX Pro$50/moAX EnterpriseCustom
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All Phoenix (Arize) Plans & Pricing

Plan Monthly Annual Best For
AX Free Not specified
AX Pro Not published Not specified
AX Enterprise Contact Sales Contact Sales Not specified
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AX Free

AX Pro

AX Enterprise

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Tier
Billing
Your projected cost$1.3Kper month · $50/unit × 25units
Year 1 license$15K12 months at this rate
At a glance

List price by tier (annualized, per unit)

Per-unit list price across Phoenix (Arize)'s plans, annualized. Custom-priced tiers show a hatched bar.

AX FreeCustom
AX Pro$600/yr
AX EnterpriseCustom
Quick Answer
Last verified:
High confidence

Phoenix (Arize) costs Free to $50 per month as of August 2026, with 3 plans available including a free tier. Plans: AX Free (free), and AX Pro at $50/month. Enterprise pricing is available on request. Pricing depends on your chosen tier, contract length, and negotiated discounts.

Use the interactive pricing calculator to estimate your exact cost based on team size and requirements.

  • Free tier: Yes

Phoenix (Arize) offers 3 pricing tiers: AX Free, AX Pro, AX Enterprise. A free plan is available. Paid plans include AX Pro at $50/month.

Compared to other ai evaluation & guardrails software, Phoenix (Arize) is positioned at the mid-market price point.

  • 8 documented hidden costs beyond list price
  • G2 rating: 4.2 out of 5 from 38 reviews (as of Jul 2026)
Last verified: | Sources: 1 pricing pages and reviews

How much does Phoenix (Arize) cost?

Phoenix (Arize) offers 3 pricing plans, starting with a free tier and scaling to custom enterprise pricing. Plans include AX Free (free), AX Pro at $50/month, AX Enterprise (custom pricing).

Phoenix (Arize) Pricing Overview

Phoenix (Arize) has 3 pricing plans, including a free tier. Paid plans range from $0 to $50/month. The AX Free plan is free. The AX Pro plan costs $50/month. The AX Enterprise plan requires contacting sales for a custom quote.

Phoenix (Arize) and annual price increases of $50,000 per year.

There are at least 8 documented hidden costs beyond Phoenix (Arize)'s list price, including implementation, training, and add-on fees.

This pricing was last verified in June 14, 2026 from 1 independent source.

Try Phoenix (Arize) Free

Phoenix (Arize) offers multiple pricing tiers to suit different needs. The available plans include AX Free, AX Pro, and AX Enterprise.

Pricing is available on a monthly basis, with custom pricing for the AX Enterprise tier.

How Phoenix (Arize) Pricing Compares

Compare Phoenix (Arize) pricing against top alternatives in AI Evaluation & Guardrails.

DeepEval (Confident AI) $0-$49.99/month View pricing → Guardrails AI Free View pricing → Lakera Free View pricing →

Compare Phoenix (Arize) vs Alternatives

Before committing to Phoenix (Arize), compare pricing with these 3 alternatives in the same category.

VSDeepEval (Confident AI)
Free

Developer CI/CD

Compare pricing
VSGuardrails AI
Custom

Teams that can self-host and manage their own validation infrastructure

Compare pricing
VSLakera
Custom

Evaluation + small hobby projects

Compare pricing

All Phoenix (Arize) alternatives & migration guides

What Companies Actually Pay for Phoenix (Arize)

Review scores
G2 4.2out of 5 (38)
Third-party review aggregates, as of Jul 2026
Top pricing complaints
Complexity and Learning CurveMigration and Integration ChallengesAlerting NoisePerformance Issues

How Phoenix (Arize) Pricing Compares

Software Starting Price Top Price
Phoenix (Arize) Free $50/month
DeepEval (Confident AI) Free $49.99/month
Guardrails AI Custom Custom
Lakera Custom Custom
LangWatch Free $34/month
PromptLayer Free $500/month

Browse all AI Evaluation & Guardrails pricing →

8 Phoenix (Arize) Hidden Costs Beyond the List Price

Beyond the listed price, Phoenix (Arize) has at least 8 documented hidden costs that can significantly increase total cost of ownership.

Watch for 8 hidden costs
  • Self-Hosting DevOps Bandwidth
    medium 1 source
    industry "One source indicates that beyond the included 50,000 trace spans per month and 10 GB ingestion per month, additional spans are billed at $0.0008 per span, and additional data at $3 per GB."
  • Paid Support Add-on (Phoenix)
    low 1 source
    industry "A paid support add-on is available separately."
  • Overage Charges for Trace Spans (Arize AX Pro) $0.0008 per span
    high 1 source
    industry "One source indicates that beyond the included 50,000 trace spans per month and 10 GB ingestion per month, additional spans are billed at $0.0008 per span, and additional data at $3 per GB."
  • Overage Fees $10 per million spans, $3 per GB of payload
    high 1 source
    industry "For instance, a workload of 50 million spans generating approximately 250 GB of telemetry could incur an additional $450 in data overages alone, on top of span overages."
  • Scaling Costs $50,000 per year
    high 1 source
    industry "Scaling Costs: Enterprise pricing for Arize AX typically starts around $50,000 per year and can escalate to $100,000 or more for larger deployments or when monitoring numerous models."
  • Setup and Integration Time
    high 1 source
    industry "Setup and Integration Time: Buyers have noted a "steep learning curve" and that "setup and integration into existing systems can take some time," implying significant internal labor costs for implementation and configuration."
  • Supplementary Tooling
    medium 1 source
    industry "Teams requiring extensive pre-production simulation and experimentation capabilities may need to invest in additional tools, leading to further costs."
  • New Enhancements Fees
    high 1 source
    industry "New Enhancements: Arize's terms of service indicate that access to certain new enhancements or features may require "the payment of additional fees," determined at Arize's sole discretion."
Tip

Ask your Phoenix (Arize) sales rep about these costs upfront. Getting them in writing before signing can save you from surprise charges later.

Full hidden costs breakdown →

Intelligence sourced from 2 independent sources
industry G2 B2B reviews
Key claims include inline source attribution. Data verified against multiple independent sources. 9 source citations total.

Phoenix (Arize) Contract Terms

Phoenix (Arize) contracts do not auto-renew. Changes require advance notice. These terms are sourced from verified buyer experiences.

Contract Terms
Price Escalation $50,000 per year
Based on 1 verified source

Phoenix (Arize) Pricing FAQ

01 Is there a free plan available?

Yes, Phoenix (Arize) offers a free plan called AX Free.

02 What is the cheapest paid plan?

The cheapest paid plan is AX Pro, which costs $50.0 per month.

03 Does Phoenix (Arize) offer custom pricing?

Yes, the AX Enterprise plan has custom pricing.

Is this pricing incorrect? — we'll verify and update it.