Arklex vs Sensei
| Arklex | Sensei | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | api, Linux, self-hosted | — |
| Evaluation methods | model | hybrid |
| Tool-call checks | Yes | — |
| Trace ingestion | Yes | — |
| Safety evaluations | Yes | — |
| Regression runs | Yes | Yes |
| SDK language support | both | javascript |
Both are listed in Best AI Agent Evaluation Tools. On Freedom251, Arklex scores higher on our published basis.