Catalog Systems Evaluation & observability platforms Arize AI

Arize AI

https://arize.com/

Production ML monitoring + LLM observability (Arize AX) — drift, eval, root-cause. Pre-LLM observability leader; now LLM-pivoted.

Active · Verified 2026-10-27 · fresh as of 2026-10-27 · 21 cited facts, 0 with a third-party source · 1 recorded change · Suggest a correction

At a glance

Type
ML + LLM observability platform vendor fix
Tier
T1
Section
Evaluation & observability platforms
Created
2020 vendor fix
Latest release
v8.61.0 (2026-10-26) — arize registry fix
License
proprietary; Python SDK Apache-2.0 repo fix
GitHub
searched not found vendor fix
Pricing
AX Free $0/mo (25k spans/mo); AX Pro $50/mo (50k spans/mo); AX Enterprise custom (SaaS or self-hosted); Phoenix OSS free vendor fix
Funding
$130.7M total raised through Series C 2024-07 ($70M, Salesforce Ventures + Battery led). vendor fix
Freshness
2026-10-27 fix
Layer
agent-infra repo fix
Licensing
commercial repo fix
Deployment locus
cloud vendor fix
Platform vs product
platform vendor fix
SDK languages
python vendor fix
Protocols
opentelemetry vendor fix

When to use

Optimised for: searched not found

Anti-fit: searched not found

Pros & cons

Pros

searched not found

Cons

searched not found

Claims & capabilities

$70M Series B 2023 (TCV led); $130M total.

Technical surface

API surface
Python SDK, Arize AX CLI (ax)
Backend storage
not applicable — not a memory product
Deployment
Both (self-hosted + managed cloud) — AX SaaS; self-hosted on AX Enterprise only
Embedding model
not applicable — not a memory product
Multi-tenancy
searched not found
MCP
yes — MCP servers and skills for coding agents to set up Arize AX
A2A
searched not found
OpenTelemetry
searched not found

Compare Arize AI with…

Similar systems

Other evaluation & observability platforms in the catalog, ranked by inbound references.

  • Arize Phoenix T1

    Arize AI's open-source LLM observability tool — OpenTelemetry-native LLM tracing, evals, datasets. Arize commercial offers Phoenix + Surveyor.

  • Braintrust T1

    Eval-first LLM platform — datasets, eval runs, prompt playground, tracing. Founded by ex-Impira (acquired by Dropbox) team. Used by Notion, Brex, AirOps.

  • Confident AI / DeepEval T2

    Open-source DeepEval framework + Confident AI cloud — pytest-style eval runs, hallucination/relevance/bias metrics, datasets.

  • OpenLLMetry (Traceloop) T2

    Traceloop's open-source OpenTelemetry auto-instrumentation for LLM workflows — works with any OTel-compatible backend (Datadog, New Relic, Grafana, etc.).

  • Helicone T2

    Open-source LLM observability and AI gateway — one-line proxy integration captures every LLM call; sessions, custom properties, evals. Acquired by Mintlify in Mar 2026 and placed in maintenance mode; helicone.ai now states it is no longer part of Mintlify.

  • Ragas T2

    Open-source eval framework for RAG pipelines — faithfulness, answer-relevance, context-precision, context-recall. Widely used as a baseline RAG eval kit.

Sources (20 cited facts, 0 third-party)

Each fact links to the page it came from; the badge says who published it (how to read sources).

What changed

Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)

  1. 2026-10-27
    • License first recorded as “proprietary; Python SDK Apache-2.0” source
    • Latest release first recorded as “v8.61.0 (2026-10-26) — arize” source
    • Pricing first recorded as “AX Free $0/mo (25k spans/mo); AX Pro $50/mo (50k spans/mo); AX Enterprise custom (SaaS or self-hosted); Phoenix OSS free” source
    • Deployment first recorded as “Both (self-hosted + managed cloud) — AX SaaS; self-hosted on AX Enterprise only” source
    • MCP support first recorded as “yes — MCP servers and skills for coding agents to set up Arize AX” source
    #271

Related systems

Referenced by (13)

  • agentgateway integrates with — agentgateway integrations docs have a Arize AX observability page. (verified 2026-10-29)
  • AutoGen / AG2 integrates with — AG2 telemetry docs point to Arize AX as a managed path for tracing and monitoring AG2 agents. (verified 2026-10-29)
  • Dify integrates with — Dify monitoring integration: "Integrate with Arize" (tracing). (verified 2026-10-29)
  • Google Agent Development Kit (ADK) integrates with — ADK integrations catalog has a "Arize AX observability for ADK" page (Production-grade observability, debugging, and improvement of LLM applications). (verified 2026-10-29)
  • Haystack (framework) integrates with — Haystack integrations directory has an Arize AI integration page ("Trace and Monitor your Haystack pipelines with Arize AI"). (verified 2026-10-29)
  • Langflow integrates with — Langflow integration page: Arize AX tracing. (verified 2026-10-29)
  • LiteLLM integrates with — LiteLLM docs have an Arize AI logging/observability integration page. (verified 2026-10-29)
  • Mastra integrates with — Mastra repo ships the @mastra/arize exporter (traces to Arize AX or Phoenix via OpenInference). (verified 2026-10-29)
  • Merge Agent Handler integrates with — Merge Agent Handler connector directory has an Arize connector. (verified 2026-10-29)
  • OpenRouter integrates with — OpenRouter Broadcast docs have a page for sending request traces to Arize AX. (verified 2026-10-29)
  • Portkey AI integrates with — Portkey docs have an Arize AX tracing provider integration page. (verified 2026-10-29)
  • TrueFoundry AI Gateway integrates with — TrueFoundry AI Gateway ecosystem lists a Arize integration page. (verified 2026-10-29)
  • Vercel AI SDK integrates with — AI SDK docs have an Arize AX observability integration page. (verified 2026-10-29)