Galileo vs Arize AI
Side-by-side from the Top 11 rankings of The 11 Best LLM Evaluation Platforms (2026) and 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked. Last verified May 31, 2026.
The short answer
Galileo ranks higher on Top 11 (#1 vs #2) for ML engineers and AI product teams measuring model quality / AI/ML engineers debugging production LLM apps. The best platform for production RAG, offering powerful, real-time hallucination detection and deep system insights.
At a glance
| Galileo | Arize AI | |
|---|---|---|
| Top 11 rank | #1 / The 11 Best LLM Evaluation Platforms (2026) | #2 / 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked |
| Score (out of 9.4) | 9.3 | 9 |
| Best for | Production RAG evaluation | Enterprise-grade model performance monitoring |
| Pricing | $$$ ($1,000 to $10,000+/mo) | $$$ ($599 to $2,000+/mo) |
| HQ | San Francisco, USA | Berkeley, USA |
| Founded | 2021 | 2019 |
Galileo
The best platform for production RAG, offering powerful, real-time hallucination detection and deep system insights.
www.rungalileo.io/See full entry in The 11 Best LLM Evaluation Platforms (2026)
Arize AI
A mature, enterprise-ready platform with deep roots in ML monitoring, excelling at drift and RAG evaluation.
arize.comMethodology and scoring weights live at /methodology. No vendor pays for placement — see about.