Galileo
llm-observability
Evaluation intelligence and observability platform for GenAI apps and agents
Pricing
Free plan
Rating
—
Votes
0
Head-to-head comparison
Galileo vs Arize Phoenix
Compare Galileo and Arize Phoenix side by side across pricing, features, ratings, pros, cons, best-fit use cases, and alternatives.
Arize Phoenix
llm-observability
Open-source LLM and agent observability built on OpenTelemetry.
Pricing
Free plan
Rating
—
Votes
0
Feature comparison
Feature
Galileo
Arize Phoenix
Category
llm-observability
llm-observability
Pricing
Free plan
Free plan
Free plan
API access
Mobile app
Browser extension
Team collaboration
Custom training
Self-hosted option
Offline mode
Multi-language support
Galileo pros and cons
Purpose-built Luna evaluation models (fast, cheaper than LLM-judge)
20+ research-backed metrics
Covers evaluation, observability, and guardrails
Polished console with minimal setup
Pro at $100/month may be steep for small teams
Free plan lacks RBAC and advanced analytics
Managed platform hosts your evaluation data (unless enterprise self-host)
Arize Phoenix pros and cons
Free and source-available, self-hosts in one command
Built on open OpenTelemetry standards
Strong tracing and evaluation for agents and RAG
Works locally, good for private/dev-time debugging
Production-scale features require paid Arize AX
Self-hosting means you run the infrastructure
Dynatrace acquisition may change roadmap/governance
Which one should you choose?
Best overall signal
Galileo
Selected using Toolglade popularity signals such as views and votes.
Best value signal
Galileo
Selected using free-plan availability and engagement signals.
Best for
Galileo
- GenAI evaluation
- production observability
- runtime guardrails
- Teams shipping GenAI apps to production
- Organizations needing evaluation rigor
Arize Phoenix
- LLM and agent tracing
- RAG debugging
- eval-driven development
- hallucination detection
- Engineers debugging LLM and agent apps
FAQ
Is Galileo better than Arize Phoenix?
It depends on your use case. Compare category fit, pricing, feature availability, and ratings before choosing.
Which tool has a free plan?
Galileo and Arize Phoenix offer a free plan based on current Toolglade data.
Where can I find alternatives?
View Galileo alternatives or view Arize Phoenix alternatives.