Arize AI

https://arize.com/

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

At a glance

Type
ML + LLM observability platform
Tier
T1
Created
2020
Latest release
searched not found
License
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Pricing
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Funding
$130.7M total raised through Series C 2024-07 ($70M, Salesforce Ventures + Battery led).

Taxonomy

storage
n/a
retrieval
n/a
persistence
n/a
update
n/a
unit
n/a
governance
n/a
conflict
n/a

When to use

Optimised for: searched not found

Anti-fit: searched not found

Pros & cons

Pros

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Cons

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Claims & capabilities

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

Technical surface

API surface
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Backend storage
not applicable — not a memory product
Deployment
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Embedding model
not applicable — not a memory product
Multi-tenancy
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MCP
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A2A
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OpenTelemetry
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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.

  • Galileo T1

    Galileo Evaluate / Observe / Protect — eval, tracing, guardrails. Big focus on hallucination detection and ChainPoll evaluator metric.

  • Helicone T2

    Open-source LLM observability with one-line proxy integration — gateway routes through their proxy, captures every LLM call. Sessions + custom properties + evals.

  • Humanloop T2

    Collaborative LLM development platform — non-eng prompt editor, eval, tracing. UK; Index Ventures + Y Combinator backed.

Row last verified 2026-05-14. Catalog data is CC-BY-4.0 — see how to read this.