Arize AX
Arize AX: Broad LLM observability with tracing, evaluations, prompts, agents, RAG, and cost tracking. Ranked #1 of 26 in LLM Observability Tools by our editors (9.4/10); pricing: Free plan; best for teams wanting broad, production-ready LLM observability.
At a glance
- Editor score9.4 / 10
- PricingFree plan
- Best forTeams wanting broad, production-ready LLM observability
- Free planYes
- Paid from$50/mo
- LLM tracingYes
- Facts checked20 Sep 2026
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
Our verdict on Arize AX
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.
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Arize AX pricing
All 3 Arize AX plans and prices →
Arize AX fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $50/mo |
| LLM tracing | Yes |
| LLM evaluations | Yes |
| Prompt management | Yes |
| Agent tracing | Yes |
| Retrieval tracing | Yes |
| Token cost tracking | Yes |
| Deployment options | Both |
| Deployment | Cloud, Self-hosted |
| Platforms | Web |
| Compliance & security | SOC 2, GDPR, HIPAA, SSO/SAML |
| Support | Email, Community, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 18 integrations: Amazon Bedrock, Anthropic, Cohere, Google GenAI, Groq, LiteLLM … See all → |
| Pricing | Free plan (source) |
| Website | arize.com |
| Facts checked | 20 Sep 2026 |
Arize AX integrations
Arize AX lists 18 integrations on its own site.
- Amazon Bedrock
- Anthropic
- Cohere
- Google GenAI
- Groq
- LiteLLM
- Mistral AI
- OpenAI
- OpenRouter
- Vertex AI
- LangChain
- LangGraph
- LlamaIndex
- CrewAI
- AutoGen
- Haystack
- MCP
- Ragas
See all Arize AX integrations →
Alternatives to Arize AX
- LangfuseA broad observability platform with open-source deployment and accessible paid tiers.9.3
- Arize PhoenixA free platform for tracing, evaluating, and improving LLM applications.9.2
- OpikA broad, cost-conscious stack for tracing, evaluation, prompts, monitoring, and agent debugging.9.1
See all Arize AX alternatives →
Arize AX vs the competition
- Arize AX vs Langfuse
- Arize AX vs Arize Phoenix
- Arize AX vs Opik
- Arize AX vs W&B Weave
- Arize AX vs LangSmith
- Arize AX vs LangWatch
Compare Arize AX with any tool side by side →
Also Ranked In
Arize AX is ranked in 6 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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