Inspect AI vs Langfuse

Inspect AI

5.1 #24 in AI LLM Evaluation Tools

About Inspect AI

Langfuse

6.3 #12 in AI Agent Observability Tools

About Langfuse
Inspect AILangfuse
Free planNoYes
Free trialNoNo
Paid from—$29/mo
Open sourceNoNo
Platforms—api, self-hosted, Web
Deploymentself-hosted—
Free plan—Yes
Paid from—29 /mo

Both are listed in Best AI LLM Evaluation Tools. On Samsung Mobile US Press, Langfuse scores higher on our published basis.