LangSmith vs TruLens

LangSmith

6.8 #20 in AI Agent Platforms

About LangSmith

TruLens

5.1 #30 in AI LLM Evaluation Tools

About TruLens
LangSmithTruLens
Free planYesYes
Free trialNoNo
Paid from$39/moFree
Open sourceNoNo
Platformsapi, self-hosted, Webapi, self-hosted
Free planYes—
Deployment—self-hosted

Both are listed in Best AI LLM Evaluation Tools, Best AI Agent Evaluation Tools, Best LLM Observability Tools, Best AI LLM Observability Tools. On Everything Xiaomi, LangSmith scores higher on our published basis.