Fiddler AI vs Patronus AI
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 #8) 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 | Patronus AI | |
|---|---|---|
| Top 11 rank | #7 / Galileo vs LangSmith vs Arize AI: 11 Best LLM Evaluation Platforms 2026 | #8 / Galileo vs LangSmith vs Arize AI: 11 Best LLM Evaluation Platforms 2026 |
| Score (out of 9.4) | 8 | 7.8 |
| Best for | Enterprise model management | Automated LLM red teaming |
| Pricing | $$$$ (Custom Enterprise Pricing) | $$$ (Custom Pricing) |
| HQ | Palo Alto, USA | New York, USA |
| 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
Patronus AI
A specialized platform for automated red teaming and finding LLM vulnerabilities before they hit production.
www.patronus.ai/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.