Arena (formerly Chatbot Arena) vs Promptfoo
| Arena (formerly Chatbot Arena) | Promptfoo | |
|---|---|---|
| Free plan | Yes | Yes |
| Paid from | Free | Free |
| Platforms | Web | api, Linux, macOS, self-hosted, Web, Windows |
| Free plan | Yes | Yes |
| Deployment options | cloud | both |
| Safety evaluations | Yes | Yes |
| Human review workflows | Yes | Yes |
| Custom metrics | Yes | |
| LLM-as-a-judge | Yes | |
| CI/CD integration | Yes |
Listed together in Best LLM Evaluation Tools