Arena (formerly Chatbot Arena) vs Braintrust
| Arena (formerly Chatbot Arena) | Braintrust | |
|---|---|---|
| Free plan | Yes | Yes |
| Paid from | Free | $249/mo |
| Platforms | Web | api, self-hosted, Web |
| Free plan | Yes | Yes |
| Deployment options | cloud | both |
| Safety evaluations | Yes | Yes |
| Human review workflows | Yes | Yes |
| Paid from | 249 /mo | |
| Custom metrics | Yes | |
| LLM-as-a-judge | Yes | |
| Prompt versioning | Yes | |
| CI/CD integration | Yes |
Listed together in Best LLM Evaluation Tools