AA

Arize AI

Infrastructure

AI observability and evaluation platform that traces, monitors and evaluates machine-learning and LLM applications in production.

Total funding—

Valuation—

Employees—

Founded2020

HeadquartersBerkeley, USA

StatusPrivate

Products

Selected offerings — the AI products recorded here, not the vendor's full catalogue.

• Arize AX Platform Sold on its own

  AI observability platform that traces, evaluates and monitors machine-learning and LLM applications in production, surfacing issues and root causes.

• Arize Phoenix Developer tool Sold on its own

  Open-source platform for tracing, evaluating and experimenting with LLM and agent applications, run locally, via Docker/Kubernetes, or as free Phoenix Cloud instances.

• Arize Database (adb) Infrastructure service

  An AI-native datastore (built on Apache Iceberg) that unifies observability and evaluation data in open formats for zero-copy access across the AI/data stack.

Inside Arize AX

• Alyx AI agent Included with the parent

  AI engineering agent built into Arize AX that reads a project's traces, prompts, datasets and evals and acts on them — investigating issues, improving prompts and running evaluations from a full-page or side-chat surface whose context carries across pages.

Closest alternatives 3

GGalileoAcquired ($68M deal)Galileo's own comparison post frames the buyer choice as prevention (Galileo) versus after-the-fact detection (Arize) for the same observability job.1 of 3 capabilitiesShared product typeSourced competitorBuild and run AI agentsCompareFAFiddler AIPrivate · $100M raisedFiddler's own comparison page.2 of 3 capabilitiesShared product typeSourced competitorBuild and run AI agentsCompareLLangfuseAcquiredArize's own page tells teams that have outgrown Langfuse to make Arize their first comparison for the same observability/eval job.1 of 3 capabilitiesShared product typeSourced competitorBuild and run AI agentsCompare

Similar products 23

How this list is ranked ↗

AAArthur AIPrivate · $62.7M raisedArize Phoenix and Arthur Engine both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Arize AI's scale not recorded.2 of 3 capabilitiesShared product typeCompareBBraintrustPrivate · $125M raisedArize AX and Braintrust both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Arize AI's scale not recorded.1 of 3 capabilitiesShared product typeCompareDDeepchecksAbsorbedArize AX and Deepchecks LLM Evaluation both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Arize AI's scale not recorded; Deepchecks is absorbed, with no independent scale.1 of 3 capabilitiesShared product typeCompareCMComet MLPrivate · $70M raisedArize Phoenix and Opik both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Arize AI's scale not recorded.2 of 3 capabilitiesShared product typeCompareW&Weights & BiasesAcquiredArize Phoenix and W&B Weave both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Arize AI's scale not recorded; Weights & Biases is acquired, with no independent scale.1 of 3 capabilitiesShared product typeCompareHHeliconeAcquiredArize AX and Helicone both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Arize AI's scale not recorded; Helicone is acquired, with no independent scale.1 of 3 capabilitiesShared product typeCompareSSplunkAcquiredOverlaps on agent orchestration, data analysis and evaluation and observability; Arize AI's scale not recorded; Splunk is acquired, with no independent scale.3 of 3 capabilitiesShared product typeCompareCCoreWeavePublic · $48.5BAlyx and CoreWeave ARIA both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Arize AI's scale not recorded.2 of 3 capabilitiesShared product typeCompareDDatadogPublic · $84.9BOverlaps on agent orchestration, data analysis and evaluation and observability; Arize AI's scale not recorded.3 of 3 capabilitiesShared product typeCompareCClickHousePrivate · $1.1B raisedArize Phoenix and ClickStack both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Arize AI's scale not recorded.3 of 3 capabilitiesShared product typeCompareEElasticPublic · $10.2BArize Phoenix and Elastic LLM Observability both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Arize AI's scale not recorded.3 of 3 capabilitiesShared product typeCompareLLangChainPrivate · $160M raisedArize Phoenix and LangSmith both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Arize AI's scale not recorded.2 of 3 capabilitiesShared product typeCompareDDatabricksPrivate · $190BArize AX and Agent Bricks both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Arize AI's scale not recorded.3 of 3 capabilitiesShared product typeCompareHAHume AIPrivateOverlaps on data analysis and evaluation and observability; scale not recorded for either.2 of 3 capabilitiesShared product typeCompareEEncordPrivateOverlaps on agent orchestration, data analysis and evaluation and observability; scale not recorded for either.3 of 3 capabilitiesShared product typeCompareCCognigyAcquiredOverlaps on agent orchestration, data analysis and evaluation and observability; Arize AI's scale not recorded; Cognigy is acquired, with no independent scale.3 of 3 capabilitiesShared product typeCompareDDataikuPrivate · $3.7BArize AX and Dataiku Agent Hub both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Arize AI's scale not recorded.3 of 3 capabilitiesShared product typeCompareITInvisible TechnologiesPrivate · $144M raisedArize AX and Synapse both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Arize AI's scale not recorded.3 of 3 capabilitiesShared product typeCompareYYellow.aiPrivateOverlaps on agent orchestration, data analysis and evaluation and observability; scale not recorded for either.3 of 3 capabilitiesShared product typeCompareVSVerint SystemsAcquiredArize Phoenix and Verint Quality Bot both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Arize AI's scale not recorded; Verint Systems is acquired, with no independent scale.3 of 3 capabilitiesShared product typeCompareSSAPPublic · $256.3BArize AX and SAP AI Agent Hub both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Arize AI's scale not recorded.3 of 3 capabilitiesShared product typeCompareBByteDancePrivateArize AX and Coze Loop both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; scale not recorded for either.3 of 3 capabilitiesShared product typeCompareSSierraPrivate · $15.8BOverlaps on agent orchestration, data analysis and evaluation and observability; Arize AI's scale not recorded.3 of 3 capabilitiesShared product typeCompare

Closest alternatives are pairs a vendor page itself compares. Similar products are matched from what each product does; nothing in that group is asserted as a rivalry.

Sources

Founded

Company disclosure · Feb 2025

Arize's own blog: "In 2020, we founded Arize."

Open Arize AI in the directory

Something wrong here? Send a correction — quote this company id: arize-ai.