Langfuse
Langfuse provides traces, evaluations, prompt management, and metrics to debug and improve LLM applications.
Free + paidCLIDesktopAPIOpen sourceKoreanLLM-basedMultimodal
Visit websitelangfuse.com
Compare with book-to-skillExplore Langfuse alternativesOverview
Langfuse provides traces, evaluations, prompt management, and metrics to debug and improve LLM applications. Key capabilities include OpenTelemetry tracing for observability, prompt management for development, and evaluation tools for testing datasets and experiments. It is designed for developers and engineering teams building production-grade AI projects. Access begins with a free Hobby plan offering 50k units per month, with Core and Pro plans available for scaling needs.
Key features
- LLM Observability and Tracing
- Prompt Management
- Evaluation and Datasets
Pricing
Free + paidStarting price: US$29/mo
View pricing pageVerified on: · Recheck pricing on the official page
Use cases
- Debugging LLM applications
- Monitoring model performance
- Testing prompts and datasets
Who it is for
DevelopersAI teams
Integrations
OpenAIClaudeLangChainLlamaIndexAmazon BedrockGoogle GeminiLiteLLM
Tags
API
How we verified this
Company, pricing, and feature details come from the primary sources below and our latest verification pass. When sources disagree, the official source and the most recent check win.
Last verified 08/02/2026Verified sources: 1
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