Best AI Agent Evaluation Tools in 2026
Updated
29 AI agent evaluation tools ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
29ranked
0free plans on this page
7 Oct 2026last checked
AI Agent Evaluation Tools, one module each. A lit port is something its maker publishes; 0 of the 4 on this page have a public API.
- 26 Sensei API not on recordOSS not on recordFREE not on recordDOCS 5.3
- 27 VRUNAI API not on recordOSS not on recordFREE not on recordDOCS 5.1
- 28 OpenAgent Eval API not on recordOSS not on recordFREE not on recordDOCS 5.0
- 29 TruLens API not on recordOSS not on recordFREE not on recordDOCS 4.6
Compare all 4 in a table
| # | Platform | Score | Free plan | Free plan | Paid from | Evaluation methods | Tool-call checks |
|---|---|---|---|---|---|---|---|
| 26 | Sensei | 5.3 | No | — | — | hybrid | — |
| 27 | VRUNAI | 5.1 | No | Yes | — | code | Yes |
| 28 | OpenAgent Eval | 5.0 | No | Yes | — | hybrid | No |
| 29 | TruLens | 4.6 | No | — | — | — | — |