Skip to content
InfratoApp
Layers / Observability / Evals / Evaluation and benchmarking / Arize Phoenix

Arize Phoenix

UNCLAIMEDClaim this listing

By Arize Phoenix

EVALUATION AND BENCHMARKINGTRACING AND MONITORING

Arize Phoenix — AI Observability and Evaluation. Listed under Evaluation and benchmarking in the Observability / Evals layer. 5 of 10 comparison attributes are recorded, each with the page it was read from.

Continuously improve AI agents with agent observability, evaluation, tracing, and experimentation.

3 OF 4 SIGNALS HELD · MISSING LICENCE

WebsiteDocsPricing pageArize-ai/phoenix

What it runs on, and what runs on it

10 cited edges
The differentiator

Computed from the stack graph, both directions. Every cited edge links the page it was read from; a vendor-added one links the vendor’s own source — this is the reason to be here rather than on the vendor’s own site.

RUNS ON / INTEGRATES WITH

USED BY

Open-source signals

LICENCE
not measured
DOWNLOADS 30D
1,470,040
LAST COMMIT
2026-09-10
2026-09-10JSON

A HOLLOW RING IS UNMEASURED, NOT ZERO · WE DO NOT SUBSTITUTE A PARENT COMPANY’S REPOSITORY FOR A PRODUCT THAT HAS NONE

Price

We hold no price for this product.

The seller publishes a pricing page, linked above, but we read no rate from it. Either it quotes by sales call rather than in public, or the last reading passed 21 days and was hidden rather than shown stale. If that changes — or if you publish /.well-known/pricing.json — it appears here with a capture date.

How we read prices →

What its categories ask

5 answered · 5 unanswered

10 questions declared by Evaluation and benchmarking and Tracing and monitoring. Most rows across the directory read like these.

ATTRIBUTEANSWEREVIDENCE · SOURCE
Deploymentboth2026-09-23
Framework integrations40 frameworks
“Arize integrates with 40+ models, frameworks, and AI tools , including OpenAI, Anthropic, Google, Amazon Bedrock, LangGraph, LangChain, LlamaIndex, CrewAI, OpenAI Agents SDK, DSPy, and more.”
2026-09-29
LLM-as-judgeYes
“Measure quality with LLM-as-a-judge and custom evaluators”
2026-09-12
Open sourceYes
“Phoenix is built by Arize AI and the open-source community.”
2026-09-12
OpenTelemetryYes
“Built on OpenInference and OpenTelemetry standards”
2026-10-06
Alertingno answer on record
Data residencyno answer on record
Dataset managementno answer on record
Human in the loopno answer on record
Licenceno answer on record

A ROW WITH NO ANSWER IS NOT A ROW WITH A “NO” · A VENDOR MAY ANSWER A BLANK ONE, MARKED VENDOR CLAIMED WITH ITS SOURCE · A DOCUMENTED VALUE IS DISPUTED, NOT OVERWRITTEN, AND STAYS VISIBLE WHILE WE RE-READ THE SOURCE

Practitioner reviews

Nobody has written one yet.

A review here is structured, not a star: hardware, scale band, what broke in production, and whether you would choose it again.

NO PERCENTAGE IS SHOWN UNDER FIVE REVIEWS · NO STAR RATINGS, EVER

Also in this category

51 products in Evaluation and benchmarking. Comparison defaults to within the category — pairing this with a GPU cloud would produce a page that means nothing.

langfuseUSED BY 16COMPARE →
LangSmithUSED BY 15COMPARE →
BraintrustUSED BY 3COMPARE →
RagasUSED BY 2COMPARE →
Weights & Biases WeaveUSED BY 2COMPARE →
opikUSED BY 1COMPARE →
PromptfooUSED BY 1COMPARE →
Traceloop OpenLLMetryUSED BY 1COMPARE →

USED BY = LISTED PRODUCTS DEPENDING ON IT, IN THIS DIRECTORY

Frequently asked

Is Arize Phoenix open source?
No. Arize Phoenix is listed as a commercial product, so there is no repository behind the figures here and nothing to self-host.
What does Arize Phoenix run on?
Anthropic, Google DeepMind, Modal and 1 more. Every one of those is an edge we recorded from documentation that states it, not an inference from what the two products have in common.
Does Arize Phoenix offer llm-as-judge?
Yes. Read from their own page: “Measure quality with LLM-as-a-judge and custom evaluators”.
Does Arize Phoenix offer open source?
Yes. Read from their own page: “Phoenix is built by Arize AI and the open-source community.”.
What does a blank mean on the Arize Phoenix page?
That nobody has told us, not that the answer is no. A hollow ring is "no answer on record", which is a different state from a recorded no — and the two look different on purpose. A blank is an absence of evidence, and this page shows how many of its questions are in that state rather than quietly leaving them out.
Where do the Arize Phoenix figures come from?
Each one is read from a public page — usually the vendor's own documentation or pricing page — and carries a link to it with the date it was read. Nothing here is estimated, averaged across sources, or inferred from a similar product. If a figure cannot be traced to a page, it is not published.
Can Arize Phoenix change what this page says?
They can claim the listing and supply or correct values, which are then labelled as theirs. They cannot remove the page, hide a comparison they are losing, or change a figure somebody else recorded with a source. Nothing on the page is for sale. How the site is paid for is set out under money and independence at /our-data#sec5.
Something here is wrong — how do I fix it?
Dispute the value. Every figure links to the page it was read from, so a dispute names the value and gives a source that contradicts it. That is the only lever anyone has over this page, and it is the same lever for the vendor, a competitor and a reader.
Is this listing run by Arize Phoenix?
No. It is built from public sources, and no value on it came from the company. Anyone with an address at arize.com can claim it for free. A claim lets the company write the tagline, description and logo, and answer blank questions or add dependencies, each marked as theirs with a source. Prices, licence and OSS figures stay as the directory read them, category changes only through our review, and each can be disputed with a source.

Cite this page

A model that quotes us should quote us correctly. The reading and its date sit inside the citation rather than beside it, because a quotation carrying only a URL goes wrong the week the URL changes.

infratoapp, “Arize Phoenix — Evaluation and benchmarking”, read 23 September 2026. Deployment: both as published at arize.com. https://www.infratoapp.com/products/arize-phoenix

What Arize Phoenix can and cannot change here

Claiming Arize Phoenix lets its admins and editors change the tagline, description, logo, docs link and deployment model of every product that org owns — live, labelled as theirs, and logged. Answers to blank questions and dependencies go live too, marked as the owner’s and sourced; a documented answer cannot be overwritten. Everything else on this page is a stated fact with a dispute route: price, licence and OSS figures. Those columns are ungranted at the database level, so they are not a feature we withheld — they are a write that cannot happen. Name, category, website, pricing page and package names can be changed by the owner only through our review. A dispute never deletes a value; it marks it and publishes the correction.

Claim Arize PhoenixFree · email at arize.com