YC W23 · Acquired
Langfuse
Open source LLM engineering platform
Website
https://langfuse.comAbout
Traces, evals, prompt management and metrics to debug and improve your LLM application. Onboard via https://langfuse.com Langfuse helps you build and improve LLM applications across the entire lifecycle: - Develop: Observability, Langfuse UI & Prompt Management - Monitor: Traces, Analytics, Metrics & Evaluations - Test: Experiments, Releases & Datasets We are hiring: https://langfuse.com/careers Langfuse joined Clickhouse in Jan 2026 where the founders now continue to build the team.