Pricing

Phoenix open-source observability is free to self-host; Arize AX is the managed commercial platform (contact for plan details).

Overview

Arize is an AI engineering platform for observing, evaluating, and improving agents in production. Built by the team behind OpenInference, it traces agent and LLM runs, runs span/trace/session evals, and helps teams test prompt and harness changes before deploy. Alyx is an in-product AI engineering agent for debugging and fixes. Phoenix is the open-source local path; Arize AX is the managed product with ADB-backed scale.

Key features

End-to-end agent and LLM tracing via OpenInference
Span, trace, and session evaluations at scale
Alyx AI engineering agent for debug and improvement
Prompt and harness experimentation before production
Phoenix open-source self-host option
ADB datastore with warehouse connectors
Integrations with major models and agent frameworks

Use cases

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