Galileo vs Weights & Biases
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
Galileo ranks higher on Top 11 (#1 vs #4) for ML engineers and AI product teams measuring model quality. The best platform for production RAG, offering powerful, real-time hallucination detection and deep system insights.
At a glance
| Galileo | Weights & Biases | |
|---|---|---|
| Top 11 rank | #1 / Galileo vs LangSmith vs Arize AI: 11 Best LLM Evaluation Platforms 2026 | #4 / Galileo vs LangSmith vs Arize AI: 11 Best LLM Evaluation Platforms 2026 |
| Score (out of 9.4) | 9.3 | 8.7 |
| Best for | Production RAG evaluation | Experiment-centric evaluation |
| Pricing | $$$ ($1,000 to $10,000+/mo) | $$$ ($500 to $5,000/mo) |
| HQ | San Francisco, USA | San Francisco, USA |
| Founded | 2021 | 2017 |
Galileo
The best platform for production RAG, offering powerful, real-time hallucination detection and deep system insights.
www.rungalileo.io/See full entry in Galileo vs LangSmith vs Arize AI: 11 Best LLM Evaluation Platforms 2026
Weights & Biases
Extends best-in-class experiment tracking to LLM evaluation, perfect for systematic prompt engineering and development.
wandb.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.