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Arize AI pricing

Arize AX is a managed platform for tracing, evaluating and monitoring AI agents and LLM applications, with a free open-source sibling called Phoenix.

AI governance toolsFree planSelf-serve + sales
Visit Arize AIPrices checked Oct 29, 2026

How much does Arize AI cost?

Paid plans start at $50/mo
Free plan
Yes
Enterprise
Contact sales
Read from arize.com/pricing on Oct 29, 2026. Price changed? Tell usSee the line each price came from

In your favor

  • Free plan. AX Free: 25k spans per month, 1 GB ingestion per month, 15 days retention, 10 Signal issues per month, unlimited users and evals, SaaS only. No credit card required.

How you buy and get started

Self-serve + salesButtons on their site: Start free, Book a demo, Sign up, Request demo
Sign up
Self-serve signup for Free and Pro plans
"Start for free"
Setup
Connect an agent or app and send a first trace; install via npx
"Connect your agent or application to Arize and send your first trace."
When sales steps in
Enterprise plan via demo request
"Request demo"
Support
Community (Free), Email (Pro), Dedicated (Enterprise)
"Troubleshooting support"

What Arize AI does

Arize AX traces what AI agents do in production, runs evals on traces and sessions, and includes an in-app AI agent (Alyx) that debugs and proposes fixes. It is sold as Free, Pro and Enterprise plans, with self-hosting available on Enterprise.

Good for
AI engineering teams building and running LLM apps and agents who need observability, evaluation and debugging, from solo builders to enterprises with self-hosting needs.
Channels
Web app, Terminal (npx install), Coding agent integrations (Cursor, Claude Code, OpenCode)
Main product
Arize AX
Also includes
Tracing of agents and LLM calls (OpenTelemetry/OpenInference), Online and offline evals, trace and session evals, Alyx in-app AI engineering agent, Signal issue detection, Experiments, datasets, playgrounds and prompt versioning, Custom dashboards, metrics and monitors
Connects to
OpenAI, Anthropic, Google, Amazon Bedrock, LangGraph, LangChain, LlamaIndex, CrewAI, OpenAI Agents SDK, DSPy, BigQuery, Databricks
Public API
Not stated
MCP server
Not stated
  • AI system inventoryNot stated
  • AI risk assessmentsNot stated
  • EU AI Act, NIST, ISO mappingNot stated
  • Policy and approval workflowsNot stated
  • Model monitoring and driftWithout visibility into a model’s reasoning, data drift, or hallucinations, how can teams ensure reliability a
  • Bias and fairness testingNot stated
  • Shadow AI discoveryNot stated
  • Audit-ready reportingNot stated

The same 8 checks appear on every tool in AI governance tools. Each tick quotes the vendor's own site.

Security and your data

QuestionTheir answerWhere it says so
Trains AI on your data?no"We do not use your inputs to AI-powered features to train our models unless you separately consent to such use."privacy
HIPAA (signs a BAA)Not stated
SOC 2SOC 2 Type II"SOC 2 Type II"home
GDPRGDPR compliant"GDPR Compliant"security
CCPANot stated
PCIPCI DSS compliant"PCI DSS Compliant"security
ISO 27001ISO/IEC 27001 certified"ISO/IEC 27001 Certified"security
Single sign-onEnterprise SSO listed in security feature table"Enterprise SSO"pricing
Trust centerhttps://arize.com/trust-center/"Arize Trust Center"security

Security answers are the vendor's own claims, quoted. We don't audit them.

Every plan

PlanMonthlyBilled yearlyIncludedOver the allowanceWhere it says so
AX Free $0 – 25000 spans1 GB ingestion per month, 15 days retention, 10 Signal issue – "25k spans per month"
AX Proper month $50 – 50000 spans10 GB ingestion per month, 30 days retention, 25 Signal issu – "$50 per month"
AX Enterprise Quote – – – "Custom"

Free plan: AX Free: 25k spans per month, 1 GB ingestion per month, 15 days retention, 10 Signal issues per month, unlimited users and evals, SaaS only. No credit card required.

Fine print

Billing increment
Not stated
Billed beyond usage
Not stated
Contract
Not stated
Refunds
Not stated
Auto renew
Not stated
Price change notice
Not stated

"Not stated" means we read their pricing page and terms and they don't say.

About the company

Legal name
Arize AI, Inc.
Online since
Mar 24, 2002
Domain registration date
Ships updates
3 in the last 12 months
Last on Sep 1, 2026, from their changelog
Founder
Jason Lopatecki, Co-founder and CEO
Founder
Aparna Dhinakaran, Co-founder and CPO
Customers
"Customers include Wayfair, PagerDuty, TripAdvisor"
their claim

Arize AI alternatives

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Reviews elsewhere

G2 ↗Trustpilot ↗Reddit ↗Product Hunt ↗

We link to reviews instead of copying ratings: those sites don't allow reuse, and we don't test products ourselves.

Questions

Is Arize AI free?

Yes. AX Free: 25k spans per month, 1 GB ingestion per month, 15 days retention, 10 Signal issues per month, unlimited users and evals, SaaS only. No credit card required. Paid plans start at $50/month.

How much does Arize AI cost?

Paid plans start at $50 per month.

Does Arize AI train AI on your data?

No, according to Arize AI: "We do not use your inputs to AI-powered features to train our models unless you separately consent to such use."