Langfuse (part of ClickHouse, Inc. since January 2026) · Prompting, evaluation & observability
In-depth entry
Open-source LLM observability and evaluation platform: tracing, LLM-as-judge and human evals, prompt management, datasets and cost dashboards, self-hostable or as Langfuse Cloud
MITOpen sourceFreemiumSelf-hostedNov 2, 2026
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