Langfuse

Langfuse

Open Source LLM Engineering Platform

5.0
•49 reviews•

2.3K followers

Langfuse is an open-source LLM engineering platform that helps teams collaboratively debug, analyze, and iterate on their LLM applications. All platform features are natively integrated to accelerate the development workflow. Langfuse is open. It works with any model, any framework, allows for complex nesting, and has open APIs to build downstream use cases. Docs: https://langfuse.com/docs Github: https://github.com/langfuse/langfuse

Langfuse Reviews

The community submitted 49 reviews to tell us what they like about Langfuse, what Langfuse can do better, and more.

5.0
Based on 49 reviews
Review Langfuse?
Reviewers largely see Langfuse as a practical observability tool that makes LLM work easier to debug, monitor, and improve. Users repeatedly praise tracing, prompt versioning, analytics for cost and latency, straightforward integrations, and the self-hosted option, saying it helps catch edge cases, hallucinations, and broken prompts faster. Founders of , , and echo that, describing it as core for tracing model calls and raising agent quality. The main caveat: very long, tool-heavy agent traces can become hard to parse.
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