Arize Phoenix
Arize AI
Source-available AI observability and evaluation platform: OpenTelemetry/OpenInference tracing, evals, prompt iteration and experiments.
Curated by Tiberiu ArvaVerified
Strengths
- OpenInference instrumentation on OpenTelemetry
- LLM, code and human-label evaluators
- Datasets and experiments to compare app versions
Practitioner note
A strong local-first option for internal tracing and evals, and OpenInference instrumentation keeps traces portable. The ELv2 license rules out reselling Phoenix as a managed service, and certifications (SOC 2, ISO 27001) belong to Arize's commercial AX platform, not to a self-hosted Phoenix.
Warning
Governance posture
Reviewed 2026-09-30Self-hosted on Docker, Kubernetes or any cloud, so the operator controls where trace data lives.
SourceSelf-hosted via Docker or Kubernetes. Managed and self-hosted enterprise options are sold separately as Arize AX. (self-hosted)
SourceThe Phoenix docs overview does not describe a native audit or access log for user actions.
Self-hosted software. SOC 2 applies to the operator's infrastructure (Arize's own SOC 2 covers its commercial AX platform).
Self-hosted software. ISO 27001 applies to the operator's ISMS (Arize's certification covers the company and AX, not a self-hosted Phoenix).
Self-hosted software. ISO 42001 applies to the deploying organisation.
Observability and evaluation tooling, not an AI system placed on the market. Obligations rest with the deployer of the traced system. (role: not-applicable)
Elastic License 2.0: source-available and not OSI-approved. It bans offering Phoenix as a hosted or managed service and bans circumventing license keys. (high)
SourceEU AI Act obligations
Risk tier: Not applicable · as of 2026-08-23Source-backed information mapped from Arize Phoenix's tracked risk tier — not legal advice. Obligations depend on how your organisation deploys the system; see the full obligation reference and timeline.
This record's EU AI Act risk tier is marked not applicable, so no tier-specific obligations attach. Deployers embedding it in an AI system in scope of the Act should assess that system's own tier.
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