Galileo vs OpenLLMetry
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 #11) 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 | OpenLLMetry | |
|---|---|---|
| Top 11 rank | #1 / The 11 Best LLM Evaluation Platforms (2026) | #11 / 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked |
| Score (out of 9.4) | 9.3 | 7.1 |
| Best for | Production RAG evaluation | Open source, OpenTelemetry-native tracing |
| Pricing | $$$ ($1,000 to $10,000+/mo) | $ (Free) |
| HQ | San Francisco, USA | Open Source |
| Founded | 2021 | 2023 |
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)
OpenLLMetry
A vendor-agnostic, open-source standard for adding LLM signals to OpenTelemetry traces.
github.com/traceloop/openllmetryMethodology and scoring weights live at /methodology. No vendor pays for placement — see about.