Langfuse
About Langfuse
Langfuse is an open-source LLM engineering platform for observability, testing, and prompt management. Debug production AI issues, evaluate model responses, and track costs across every LLM call in your application.
Screenshot
Use Cases
Testing, and prompt management
Debug production AI issues, evaluate model responses, and tr
Write and review code faster with AI
Autocomplete code in real time
Pros & Cons
Pros
Developer API for custom integrations
Open-source and self-hostable
Speeds up the development cycle notably
Cons
Starts at $59/mo — costly for individuals
Suggestions need review for edge cases
Works best on well-structured codebases