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Arize Phoenix vs Galileo Comparison

Last updated:

Arize Phoenix

Starting at Contact for pricing

  • Small Business
  • Medium Business

Phoenix is Arize's open-source observability and evaluation tool for LLM applications, built on OpenTelemetry so traces are portable rather than locked to one vendor. It runs locally in a notebook or as a self-hosted ser…

Galileo

Starting at Contact for pricing

  • Medium Business
  • Large Enterprises

Galileo is an LLM evaluation and observability platform for testing, monitoring, and guardrailing generative AI applications and agents. It captures traces from an application and scores them using its proprietary evalua…

Arize Phoenix vs Galileo — at a glance

FeatureArize PhoenixGalileo
Rating
Reviews
Starting priceContact for pricingContact for pricing
Free trial No No
Free version No No
Best forSmall Business, Medium Business, Large EnterprisesMedium Business, Large Enterprises
CategoryLLM Observability & Evaluation SoftwareLLM Observability & Evaluation Software
PlatformsSaaS/Web/CloudSaaS/Web/Cloud
APIAvailable
Support modesOnline

Key differences between Arize Phoenix and Galileo

  • Target audience: Arize Phoenix is built for Small Business and Medium Business, while Galileo targets Medium Business and Large Enterprises.
  • Deployment: Arize Phoenix supports SaaS/Web/Cloud; Galileo supports SaaS/Web/Cloud.

Arize Phoenix vs Galileo — find the better fit before you commit.

01

Which tool fits your team best

02

Which is actually cheaper for your team size

03

Where each product wins, per real buyers

Most LLM Observability & Evaluation Software tools look identical on paper. This comparison cuts to the differences that matter — pricing structure, team fit, and what real buyers found after signing up.

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Arize Phoenix vs Galileo: Biggest differences

Start here before you go deeper into features.

Arize Phoenix

Best for

Small Business, Medium Business, Large Enterprises

Galileo

Best for

Medium Business, Large Enterprises

Arize Phoenix typically suits Small Business and Medium Business. Galileo tends to fit Medium Business and Large Enterprises better. The right choice depends on your team size, workflow, and whether a free trial matters.

Description

Phoenix is Arize's open-source observability and evaluation tool for LLM applications, built on OpenTelemetry so traces are portable rather than locked to one vendor. It runs locally in a ... Read More about Arize Phoenix

Galileo is an LLM evaluation and observability platform for testing, monitoring, and guardrailing generative AI applications and agents. It captures traces from an application and scores ... Read More about Galileo

Free Trial Availability

  • No free trial
  • No free trial
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How do Arize Phoenix and Galileo Compare on Features?

Total Features

6 Features

0 Features

Unique Features

No unique features

No features

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Compare Arize Phoenix and Galileo on pricing

Review starting price, plan structure, and free-trial access side by side so you can see which option fits your budget and buying process.

Arize Phoenix vs Galileo: Other Details

Organization Types supported

      Platforms Supported

          Modes of support

          • 24/7 (Live rep)
          • Business Hours
          • Online
          • 24/7 (Live rep)
          • Business Hours
          • Online

          API Support

          • Available
          • Not Available
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          Get help choosing

          Arize Phoenix User Reviews & Rating Comparison

          Pros and Cons

          No pros or cons available for this product

          No pros or cons available for this product

          Used Arize Phoenix or Galileo? Tell buyers what actually differs.

          Top Alternatives to Arize Phoenix and Galileo in 2026

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          Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].

          Frequently asked questions

          Which is better, Arize Phoenix or Galileo?
          Arize Phoenix and Galileo are closely matched with equal user ratings of -1.0. The right choice depends on your team size, budget, and specific LLM Observability & Evaluation Software needs.
          Do Arize Phoenix and Galileo offer a free trial?
          Neither Arize Phoenix nor Galileo currently lists a free trial.
          What is the starting price of Arize Phoenix vs Galileo?
          Arize Phoenix starts at Contact for pricing. Galileo starts at Contact for pricing.
          What are the top alternatives to Arize Phoenix?
          Top alternatives to Arize Phoenix include Traceloop, Opik, Portkey, TruLens, LangWatch.
          What are the top alternatives to Galileo?
          Top alternatives to Galileo include Confident AI, Athina AI, Freeplay, Maxim AI, LangWatch.