LangWatch vs Sensei

LangWatch

7.3 #12 in AI Agent Observability Tools

About LangWatch

Sensei

5.3 #25 in AI Agent Evaluation Tools

About Sensei
LangWatchSensei
Free planYesNo
Free trialNoNo
Paid from€29/mo—
Open sourceNoNo
Platformsapi, Linux, self-hosted, Web—
Free planYes—
Evaluation methods—hybrid
Regression runs—Yes
SDK language support—javascript

Both are listed in Best AI Agent Evaluation Tools. On Inferse, LangWatch scores higher on our published basis.