Langfuse
Open-source LLM observability — trace, debug, and evaluate AI applications in production
About Langfuse
Langfuse is an open-source LLM observability and analytics platform for production AI applications. It captures traces of every LLM call in your app — inputs, outputs, latency, cost, and errors — and surfaces them in a dashboard for debugging and optimization. Evaluation features let you score outputs and run regression tests. Used by engineering teams who need visibility into how their AI apps are actually performing in production.
Key Features of Langfuse
- ✦LLM call tracing and logging
- ✦Cost and latency tracking
- ✦Evaluation and scoring
- ✦Prompt versioning
- ✦Dataset and testing
- ✦Self-hostable (open source)
Frequently Asked Questions about Langfuse
What is Langfuse?
Langfuse is a freemium other AI tool by Langfuse. Langfuse is an open-source LLM observability and analytics platform for production AI applications. It captures traces of every LLM call in your app — inputs, outputs, latency, cost, and errors — and surfaces them in a dashboard for debugging and optimization. Evaluation features let you score outputs and run regression tests. Used by engineering teams who need visibility into how their AI apps are actually performing in production.
Is Langfuse free?
Langfuse offers a free plan with limited features. Paid plans unlock advanced capabilities.
What can you do with Langfuse?
Langfuse is used for other tasks including: llm call tracing and logging, cost and latency tracking, evaluation and scoring.
Who made Langfuse?
Langfuse was created by Langfuse and launched in 2023.
What are the best alternatives to Langfuse?
Top alternatives to Langfuse include LovedByAI, Lesson Plan Generator, Visual Field Test, AppWizzy — all available on aitoolcity.