# Langfuse

> Developer-oriented LLM and AI agent tracing, prompt management and evaluations; acquired by ClickHouse in January 2026.

## Why it is interesting

Langfuse illustrates open-core developer-led distribution in AI observability and the strategic value of high-volume agent telemetry to analytics infrastructure providers.

## Profile

- **Latest funding:** Seed — $4M (November 7, 2023)
- **Latest known valuation:** Not publicly disclosed
- **Total disclosed equity funding:** $4M
- **Stage:** acquired
- **Status:** acquired
- **Industries:** ai-ml, developer-tools, enterprise-saas
- **Coverage:** full
- **Last updated:** 2026-11-05
- **Latest funding investors:** Lightspeed Venture Partners, Y Combinator

## Funding history

- ClickHouse acquisition · Undisclosed · January 16, 2026
  Source: https://clickhouse.com/blog/clickhouse-raises-400-million-series-d-acquires-langfuse-launches-postgres
- Seed · $4M · November 7, 2023
  Source: https://langfuse.com/blog/announcing-our-seed-round

**By:** [Venture Capital Tracker](https://venturecapitaltracker.com/editorial-policy)
**Last updated:** November 5, 2026

**Editorial note:** AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.

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Source: https://venturecapitaltracker.com/startup/langfuse