Langfuse

Langfuse is an open-source LLM engineering platform that allows teams to develop, monitor, evaluate and debug AI applications together. ClickHouse is built on an open source database and can be hosted in your own infrastructure. LLM offers core features such as monitoring calls, prompt management, and assessment.

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langfuse · MLOps & AI Infrastructure

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FORKS4.1K
COMMITS0
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TypeScriptNext.jsLLM MonitoringPrompt EngineeringMIT

Common commercial products in this category: Weights & Biases, Amazon SageMaker, Databricks

What can it do?
  • You examine and debug complex logs and user sessions.
  • You can manage and release it as a Prompt center and develop it together.
  • You make assessments with LLM-as-a-judge, code-based assessors, and user feedback.
Heads up
  • • High number of open issues (1,108)
  • • No published release
User reviews
  • • NeutralHacker News

    ClickHouse acquires Langfuse

    “Correct! Will be moving away immediately for this reason. Or well, technically incorrect, as someone will surely point out. US companies can be legally compliant with GDPR, it's just that the likes of the CLOUD Act and FISA make it completely meaningless. Before anyone comes in…”

  • • NeutralHacker News

    ClickHouse acquires Langfuse

    “Ive used Langfuse. It's completely unrelated to tools like Langchain and Autogen. It's just logging/tracing for LLMs. Sure they added stuff like "prompt management" and "epxeriments" etc. probably to keep investors happy but those are entirely optional sidedishes. The tools you…”

Verified against README · Oct 26, 2026 · source

My note

Alternative pages

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