Arize AI vs Galileo
Side-by-side comparison of framework coverage, pricing, capabilities, and target customers. Last verified May 2026.
https://aicompliancevendors.com/compare/arize-ai-vs-galileo-aiArize AI
Ship Agents that Work — AI & Agent Engineering Platform for development, observability, and evaluation.
Arize AI is an LLM observability and evaluation platform designed for enterprises running AI agents and LLM applications at scale. Its flagship product, Arize AX, provides real-time monitoring, agent tracing, prompt management, online evaluations using LLM-as-a-Judge, and drift detection across NLP, computer vision, and multimodal models. The company also maintains Arize Phoenix, a widely adopted open-source AI observability library built on OpenTelemetry/OpenInference standards.
Galileo
Don't just monitor AI failures. Stop them.
Galileo is an AI observability and evaluation engineering platform that helps enterprise teams evaluate, monitor, and protect generative AI applications and agents at scale. Its Agent Reliability platform enables teams to build ground-truth datasets, auto-tune evaluation metrics from live feedback, distill LLM-as-a-Judge evaluators into compact Luna models for production guardrails, and run the full eval engineering lifecycle from offline testing to production monitoring. The platform is trusted by teams at HP, Comcast, and Twilio, and is deployable as SaaS, VPC, or on-premises.
What the data shows
We haven't published an editorial verdict on this pair yet. The comparison below is built from public vendor materials and our taxonomy — no editorialized ranking.
- Shared framework coverage: None documented in common.
- Shared capabilities: 9 of 10 listed.
Want our editorial take? Email the editors or read our methodology.
At a glance
| Attribute | Arize AI | Galileo |
|---|---|---|
| Founded | 2020 | 2021 |
| Headquarters | Berkeley, USA | Burlingame, USA |
| Employees | 51-200 | 51-200 |
| Funding | $131M Series C (most recent: $70M Series C led by Adams Street Partners, February 2025) | $68M total; most recent: $45M Series B led by Scale Venture Partners (October 2024) |
| Pricing | Contact for pricing | Contact for pricing |
| Website | Visit site | Visit site |
Framework coverage
| Framework | Arize AI | Galileo |
|---|
Capabilities
| Capability | Arize AI | Galileo |
|---|---|---|
| Agent Tracing | ✓ | ✓ |
| Audit Logging | ✓ | ✓ |
| Bias & Fairness Testing | ✓ | — |
| Drift Detection | ✓ | ✓ |
| Hallucination Detection | ✓ | ✓ |
| LLM Evaluation | ✓ | ✓ |
| LLM Guardrails | ✓ | ✓ |
| LLM Observability | ✓ | ✓ |
| Model Monitoring | ✓ | ✓ |
| Prompt Management | ✓ | ✓ |
Industries served
Arize AI
- None listed
Galileo
- None listed
Integrations
Arize AI
- None listed
Galileo
- None listed
Frequently asked
What is the difference between Arize AI and Galileo?+
Arize AI is Ship Agents that Work — AI & Agent Engineering Platform for development, observability, and evaluation; Galileo is Don't just monitor AI failures. Stop them. The full side-by-side covers framework coverage (0 shared, 0 unique to Arize AI, 0 unique to Galileo), pricing model, and capability overlap.
How do Arize AI and Galileo pricing compare?+
Arize AI: Phoenix (self-hosted open source, free); AX Free (SaaS, free, 25K spans/month, 1 GB/month, 15-day retention); AX Pro ($50/month, 50K spans/month, 100 GB/month, 30-day retention); AX Enterprise (custom pricing, SaaS or self-hosted). Additional spans at $10/million on Pro; additional GB at $3/GB. Galileo: Free tier: $0/month, 5,000 traces/month, unlimited users and custom evals. Pro: $100/month (billed yearly saves 33%), 50,000 traces/month, standard RBAC, Slack support. Enterprise: contact for pricing, unlimited traces, VPC/on-prem deploy, real-time guardrails, 24/7 support.
Which AI compliance frameworks do Arize AI and Galileo both support?+
There is no published overlap in framework coverage between Arize AI and Galileo based on each vendor's own materials.
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Editorial independence: This comparison is free and was not paid for by either vendor. See our methodology.