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LLM Eval & Observability

Langfuse

An open-source AI engineering platform designed for LLM observability, tracing, prompt management, evaluation, and experiments.

Visit site Open source via landscape-sweepLast verified · 2026-07-17

AFIT Review

Accuracy
n/a
Privacy
5.0
Value
5.0
Multilingual
n/a
Ease of use
4.0
Scalability
5.0

Lab Verdict

Langfuse is a production-proven, MIT-licensed LLM engineering platform that scales to billions of monthly events using a ClickHouse OLAP backend. It is ideal for teams building agentic workflows and LLM applications who want full data control via self-hosting, though it requires hosting infrastructure (Docker, Kubernetes) to run at scale.

llm-judge · website review · 2026-07-17

Pricing

No pricing captured.

Capabilities

llm-observabilitytracingprompt-managementevaluationclickhouse