AI Tool
Arize Phoenix pricing, features, company info, and alternatives
A factual product page for Arize Phoenix.
Last updated April 2026 · Pricing and features verified against official documentation
Pricing
Current public pricing tiers on file for Arize Phoenix, last verified Apr 24, 2026.
Phoenix
$0
Free and open source; self-hosted with user-managed ingestion, retention, and projects.
AX Free
$0 / month
Cloud plan with 25k trace spans per month, 1 GB ingestion, and 15-day retention.
AX Pro
$50 / month
Cloud plan with 50k trace spans per month, 10 GB ingestion, and 30-day retention.
AX Enterprise
Custom
Custom limits, dedicated support, and SaaS or self-hosted enterprise deployment.
What You Can Do With It
The main capabilities that shape how people use Arize Phoenix today.
Trace AI application runs span by span and inspect sessions, token usage, latency, and evaluation results together.
Version prompts, replay traces, build datasets from production traffic, and compare experiments on shared inputs.
Run Phoenix as open-source self-hosted software or move into Arize's managed AX plans for cloud deployment.
Use an observability stack built on OpenTelemetry and OpenInference rather than a proprietary tracing format.
Best For
Who Arize Phoenix is most clearly built for.
AI teams that want open-source tracing and evaluation before committing to a managed observability vendor.
Engineers iterating on prompts and agent behavior with production examples, datasets, and repeatable experiments.
Organizations standardizing instrumentation around OpenTelemetry and OpenInference.
Company
Leadership and company context for Arize AI.
CEO
Jason Lopatecki
Founders
Jason Lopatecki, Aparna Dhinakaran
Platforms
Where you can use Arize Phoenix today.
Web
Cloud
Self-hosted
CLI
Integrations
Notable connected tools and ecosystem hooks for Arize Phoenix.
OpenAI
LangChain
LlamaIndex
OpenTelemetry
OpenInference
Privacy Notes
Publicly stated data-handling notes that matter when evaluating Arize Phoenix.
Arize's trust center says customers remain responsible for the content they ingest into the platform and for access, compliance, and usage decisions.
Arize documents private connectivity options including AWS PrivateLink, Azure Private Link, Google Private Service Connect, and VPC deployments for cloud data paths.
Compliance
Public compliance or enterprise-governance signals we found for Arize Phoenix.
SOC 2 Type II
PCI DSS 4.0
ISO/IEC 27001
GDPR
HIPAA compliance
Access
How to integrate or build around Arize Phoenix.
Public API
Yes
Docs
Available
Alternatives
Other tools worth considering alongside Arize Phoenix.
Framework-agnostic platform for observability, evaluation, and deployment of AI agents and LLM apps.
Open-source LLM engineering platform for tracing, prompt management, evaluations, and analytics.
AI observability and evaluation platform for tracing, scoring, and improving production AI applications.
Developer platform for testing, debugging, and deploying AI agents and LLM apps.
Product Snapshot
Arize Phoenix is an AI observability and evaluation product from Arize that sits between fully self-hosted open-source tooling and Arize’s managed AX platform. It is designed for tracing, prompt iteration, dataset creation, and experiment-driven debugging of agent and LLM applications.
What You Can Do With It
- Trace application runs at the span level to inspect latency, token usage, sessions, and execution paths.
- Turn production traces into datasets, run experiments, and compare prompt or model changes on shared inputs.
- Version prompts, replay calls, and review evaluation results in the same workflow.
- Deploy Phoenix locally or self-host it, then move to cloud AX plans if you need managed limits and enterprise controls.
Why It Stands Out
Phoenix keeps an open-source entry point while staying connected to Arize’s broader platform. It also leans on OpenTelemetry and OpenInference rather than a closed tracing format, which makes it easier to fit into existing instrumentation stacks.
Tradeoffs To Know
- Phoenix and Arize AX are separate products with different APIs and authentication models.
- Self-hosting Phoenix adds deployment and maintenance work that cloud-only tools avoid.
- The open-source product covers core tracing and evaluation, but some governance and support features sit in AX or Enterprise plans.
- Teams using both OSS Phoenix and AX need to stay explicit about which deployment model they are operating.
Sources
- phoenix.arize.com/pricing
- arize.com/pricing
- arize.com/about-us
- phoenix.arize.com
- arize.com
- arize.com/docs/phoenix
- arize.com/docs/phoenix/self-hosting/deployment-options/terminal
- arize.com/trust-center
- arize.com/docs/ax/reference/authentication-and-security/arize-private-connect
- arize.com/docs/ax/security-and-settings/compliance
- arize.com/blog/arize-ai-achieves-iso-iec-27001-certification
- arize.com/docs/ax/reference/authentication-and-security/api-keys