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Langfuse
productai_observability
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Overview
LicenseMIT
Open source✓ Open Source
Primary languageTypeScript
Use caseopen-source LLM observability with tracing, prompt management, and evaluation
Also see
Alternative to
LangSmith
Knowledge graph stats
Claims9
Avg confidence97%
Avg freshness99%
Last updatedUpdated yesterday
Trust distribution
100% unverified
Governance
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Langfuse

product

Open-source LLM observability platform for tracing, prompt management, and evaluation

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integrates with

ValueTrustConfidenceFreshnessSources
OpenAI○UnverifiedHighFresh1
Vercel AI SDK○UnverifiedHighFresh1
LlamaIndex○UnverifiedHighFresh1
LangChain○UnverifiedHighFresh1

alternative to

ValueTrustConfidenceFreshnessSources
LangSmith○UnverifiedHighFresh1

programming language

ValueTrustConfidenceFreshnessSources
TypeScript○UnverifiedHighFresh1

primary use case

ValueTrustConfidenceFreshnessSources
open-source LLM observability with tracing, prompt management, and evaluation○UnverifiedHighFresh1

open source

ValueTrustConfidenceFreshnessSources
true○UnverifiedHighFresh1

license type

ValueTrustConfidenceFreshnessSources
MIT○UnverifiedHighFresh1

Alternatives & Similar Tools

LangSmith
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Commonly Used With

OpenAIVercel AI SDKLlamaIndexLangChain

Related entities

Claim count: 9Last updated: 4/9/2026Edit history