Head-to-Head Comparison · Alternative to Galileo · 📊 analytics
Galileo vs Arize Phoenix
Open-source platform for LLM tracing, evaluation, and optimization. Features automatic instrumentation, prompt playground, and real-time AI application monitoring. Here is how Arize Phoenix ($0/mo open source) stacks up against Galileo ($35/mo) across cost, hosting, data privacy, and real-world trade-offs.
Arize Phoenix is a verified Open Source-licensed open-source replacement for Galileo. Switching from Galileo ($35/mo) saves $420/yr per solo seat, or $2,100/yr for a 5-person team. Deployment: Runs on Self-host.
The catch: Requires self-hosting setup, updates, and server maintenance compared to managed Galileo.
Arize Phoenix
$0.00/mo · Open Source
Galileo vs Arize Phoenix Specifications
facts verified 2026-11-07
| Dimension | Galileo (Paid) | Arize Phoenix (Replacement) |
|---|---|---|
| Monthly Price | $35 / mo | $0 / mo |
| 1-Year Cost (1 seat) | $420 / yr | $0 / yr (Save $420) |
| 1-Year Cost (5 seats) | $2,100 / yr | $0 / yr (Save $2,100) |
| 1-Year Cost (10 seats) | $4,200 / yr | $0 / yr (Save $4,200) |
| Source & License | Proprietary SaaS | open source Open Source |
| Where It Runs | Vendor Cloud | Self-host (your server) |
| Platforms | Web / Cloud | webself-hosteddocker to self-host |
| GitHub Stars | — | ★ 12.2k (active nov 2026) |
Deep Dive: Switching from Galileo to Arize Phoenix
Trade-offs, installation & data architecture
What you trade away
Requires self-hosting setup, updates, and server maintenance compared to managed Galileo.
How to deploy Arize Phoenix
Clone https://github.com/arize-ai/phoenix or deploy with Docker Compose
What it takes to run
Deploy via Docker or binary release from GitHub and configure environment variables.
Where your data lives
All application data and configuration live on your own server or local database.
Why fork Arize Phoenix instead of vibe-coding a Galileo clone?
Instead of paying recurring SaaS fees for Galileo or rebuilding it from scratch, deploy one of the 8 battle-tested open-source alternatives like Langfuse.
Galileo vs Arize Phoenix FAQ
Is Arize Phoenix a good free alternative to Galileo?+
Yes. Arize Phoenix is a verified open-source (Open Source) replacement for Galileo. Open-source platform for LLM tracing, evaluation, and optimization. Features automatic instrumentation, prompt playground, and real-time AI application monitoring.
What is the catch when switching from Galileo to Arize Phoenix?+
Requires self-hosting setup, updates, and server maintenance compared to managed Galileo.
How much do you save switching from Galileo to Arize Phoenix?+
Galileo costs $35/mo ($420/yr) per seat, whereas Arize Phoenix is $0/mo. Switching saves $420/yr for a solo user, $2,100/yr for a 5-person team, and $4,200/yr for a 10-person team.
How do I install or self-host Arize Phoenix instead of Galileo?+
Install: Clone https://github.com/arize-ai/phoenix or deploy with Docker Compose. Setup: Deploy via Docker or binary release from GitHub and configure environment variables.
