
Langfuse
Open source LLM engineering platform
About
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.
Topics
- Team size
- 26 employees
- YC batch
- Winter 2023
- Status
- Acquired
- Stage
- Early stage





