Fiddler AI vs Ragas
Side-by-side from the Top 11 ranking of Galileo vs LangSmith vs Arize AI: 11 Best LLM Evaluation Platforms 2026. Last verified May 31, 2026.
The short answer
Fiddler AI ranks higher on Top 11 (#7 vs #11) for ML engineers and AI product teams measuring model quality. A mature, comprehensive platform for managing both LLM and classical ML models in the enterprise.
At a glance
| Fiddler AI | Ragas | |
|---|---|---|
| Top 11 rank | #7 / Galileo vs LangSmith vs Arize AI: 11 Best LLM Evaluation Platforms 2026 | #11 / Galileo vs LangSmith vs Arize AI: 11 Best LLM Evaluation Platforms 2026 |
| Score (out of 9.4) | 8 | — |
| Best for | Enterprise model management | Open-source RAG evaluation |
| Pricing | $$$$ (Custom Enterprise Pricing) | $ (Free) |
| HQ | Palo Alto, USA | Distributed (Open Source) |
| Founded | 2018 | 2023 |
Fiddler AI
A mature, comprehensive platform for managing both LLM and classical ML models in the enterprise.
www.fiddler.ai/See full entry in Galileo vs LangSmith vs Arize AI: 11 Best LLM Evaluation Platforms 2026
Ragas
The leading open-source framework for RAG evaluation, offering powerful metrics for teams building their own infrastructure.
docs.ragas.io/See full entry in Galileo vs LangSmith vs Arize AI: 11 Best LLM Evaluation Platforms 2026
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.