Langfuse is a leading open-source platform designed for the full LLM engineering lifecycle, providing essential tools for tracing, evaluation, and prompt management. By offering deep visibility into AI application performance, Langfuse enables developers to move from prototype to production with confidence.
Following its acquisition by ClickHouse in early 2026, the company continues to maintain its distinct engineering-heavy culture while leveraging broader resources to define the standard for LLM observability. With a tech stack built on TypeScript, Next.js, and high-performance databases like PostgreSQL and ClickHouse, the team attracts top-tier talent passionate about shaping the infrastructure layer of modern AI.