No. 7 of 32 ·AI Agent Observability Tools

Arize AX

Web · Self-hosted · API · paid plans from $50/mo

Freedom report

Two barsScore 6.4

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

Arize AX is ranked #7 of 32 in AI agent observability tools on Freedom251. It runs on API, Self-hosted, Web. There is a free plan. Paid plans start at $50/mo.

Arize AX plans and pricing

All plans

AX Free Free Free Signal 10 issues/month · 25k trace spans/month · 1 GB ingestion/month · 15-day retention · SaaS deployment · unlimited users and evals arize.com · 1 Oct 2026

AX Pro $50/mo $50 per month Signal 25 issues/month · 50k trace spans/month · 10 GB ingestion/month · 30-day retention · SaaS deployment · unlimited users and evals arize.com · 1 Oct 2026

AX Enterprise Not published Custom Unlimited Signal · custom trace spans, ingestion volume and retention · SaaS or self-hosted deployment · unlimited users and evals arize.com · 1 Oct 2026

Compared on AI agent observability tools

Free plan: Yes
Paid from: $50/mo
Cost tracking: Yes

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The record

Purpose: Arize AX is a platform for continuous improvement of AI agents that turns production behavior into better agents.
Signal: Signal surfaces important issues, uncovers root causes and generates review-ready fixes.
Managed agents: Managed Agents can investigate failing traces, fix repository bugs, automate recurring checks or be built from scratch.
Swarm observability: Swarm Observability tracks status and performance across an entire agent swarm in real time.
Evaluation: Agent-as-a-Judge learns from agent telemetry and creates scalable evaluations that surface unknown failures.
Experimentation: Arize AX runs end-to-end experiments on agents to validate changes and improve performance.
Tracing integrations: Arize AX supports integrations for providers and frameworks including OpenAI, Anthropic, Google GenAI, Amazon Bedrock, LangChain, LangGraph, LlamaIndex, CrewAI and Vercel AI SDK.
Standards: Arize AX uses OpenInference conventions and OpenTelemetry for tracing instrumentation.
Security certifications: Arize lists SOC 2, PCI DSS, ISO/IEC 27001, GDPR and HIPAA compliance or certification in its Trust Center.
Self-hosting: Self-hosted Arize AX keeps observability data, authentication, APIs and UI inside the customer’s infrastructure, with air-gapped deployment available.
Support: AX Free includes community troubleshooting support, AX Pro includes email support and AX Enterprise includes dedicated support.
Data regions: The pricing page lists US, EU or CA data regions for AX Free, AX Pro and AX Enterprise.
Price from: $50/mo

Where it ranks on Freedom251

Best AI Agent Observability Tools in 2026#7 of 32
Best LLM Observability Tools in 2026#7 of 26
Best Model Monitoring Software in 2026#7 of 24
Best AI LLM Observability Tools in 2026#5 of 23
Best Machine Learning Model Monitoring Software in 2026#6 of 20

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Sources

arize.com/products/ax/· checked 1 Oct 2026
arize.com/docs/ax/observe/tracing-integrations· checked 1 Oct 2026
arize.com/trust-center/· checked 1 Oct 2026
arize.com/products/self-hosted/· checked 1 Oct 2026
arize.com/pricing/· checked 1 Oct 2026