AI Landscape / LLMOps, Evaluation & Observability
Langfuse
Open-source observability and evaluation for LLM applications.
Company profile
Langfuse provides an open-source platform for teams building LLM applications and AI agents, with tools for tracing and debugging workflows, managing prompts, and evaluating output quality. orrick.comlangfuse.com
Available as a managed cloud service or for self-hosting, Langfuse is owned by ClickHouse following its acquisition in January 2026. orrick.comlangfuse.com
- Founded
- Not publicly reported
- Founders
- Marc Klingen, Max Deichmann, Clemens Rawert
- Headquarters
- Not publicly reported
- Chief executive
- Marc Klingen
- Employees
- Not publicly reported
- Ownership
- Owned by ClickHouse
- Total funding
- Not publicly reported
- Latest funding round
- Not publicly reported
- Valuation
- Not publicly reported
- Revenue
- Not publicly reported
Drawn from Wikidata, Wikipedia, the company's own site and news and web sources; each figure links to its source. Researched Oct 19, 2026.
Latest news
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