HELM vs WebArena
| HELM | WebArena | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Web | — |
| Deployment options | self-hosted | both |
| Custom metrics | Yes | — |
| LLM-as-a-judge | Yes | — |
| Safety evaluations | Yes | — |
| Human review workflows | Yes | — |
Both are listed in Best LLM Evaluation Tools. On Samsung Mobile US Press, HELM scores higher on our published basis.