Langfuse
Tracing, cost tracking and evals for LLM apps
Freemium💻 Coding
About Langfuse
Langfuse lets AI engineering teams trace what happens inside a model-powered application and see where usage and cost accrue across a run. Instrument the application with a supported SDK or OpenTelemetry, inspect traces for unexpected behavior, then build an evaluation dataset to compare the effect of future prompt or model changes.