Overview
Langfuse — Open-source LLM engineering platform
Langfuse is an open-source LLM engineering platform for tracing, evaluation, prompt management, and metrics. It integrates with LangChain, LlamaIndex, and any LLM framework. Its self-hosting option makes it popular for teams with strict data privacy requirements.
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LLM tracing
Evaluation framework
Prompt management
Self-hosting option
Features & capabilities
Everything it does, in plain English.
The honest take
Where it shines, where it stumbles.
✓ Pros
- ✓Open-source and self-hostable
- ✓Framework agnostic
- ✓Good evaluation tools
! Watch-outs
- !Self-hosting requires setup
- !Smaller community than LangSmith
Who it's for
Where Langfuse pays for itself fast.
LLM observability
Evaluation datasets
Prompt versioning
Cost analysis
Community reviews
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