Arize AX review
Broad LLM observability with tracing, evaluations, prompts, agents, RAG, and cost tracking.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Arize AX is an AI engineering platform for teams building AI agents and applications. It captures production traces, evaluates LLM, agent, human, and code quality signals, and supports experiments comparing prompts, models, and agent changes. Its scope suits teams that need more than basic request logging, particularly those operating agents, retrieval-augmented generation workflows, and multiple model providers.
The published plans show a useful freemium structure. AX Free includes 10 Signal issues, 25,000 trace spans, and 1 GB of ingestion per month, with 15-day retention and SaaS deployment. AX Pro costs $50 per month and raises those allowances to 25 Signal issues, 50,000 trace spans, and 10 GB of ingestion, while extending retention to 30 days. Both plans include unlimited users and evaluations. AX Enterprise uses custom pricing and adds custom trace span and ingestion volumes, custom retention, SaaS or self-hosted deployment, dedicated support, and a custom SLA.
AX’s main strength is breadth across the LLM application lifecycle. OpenTelemetry- and OpenInference-based tracing sits alongside prompt serving and versioning, agent trajectory visualizations, datasets, experiments, controlled comparisons, token and model cost tracking, retrieval-quality diagnostics, dashboards, metrics, monitors, and trace views. Integrations include Amazon Bedrock, Anthropic, Cohere, Google GenAI, Groq, LiteLLM, Mistral AI, OpenAI, OpenRouter, Vertex AI, LangChain, LangGraph, LlamaIndex, CrewAI, and AutoGen. Teams wanting a broad production observability layer should consider AX; teams seeking self-hosting below Enterprise or an open-source product should choose an alternative.
Arize AX pros and cons
- Where it wins
- Covers tracing, evaluations, prompts, agents, RAG, and cost tracking
- Supports SaaS and self-hosted deployment with Enterprise
- Connects with major LLM providers and agent frameworks
- Where it doesn't
- Free plan limits usage to 10 Signal issues per month
- Enterprise pricing is custom
- Self-hosted deployment is available only on Enterprise
Arize AX fact sheet, pricing and score →
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