Langfuse
langfuse.comOpen Source LLM Engineering Platform to debug and improve AI applications.
AI Toolsllm-observabilitytracingprompt-managementopen-sourceai-agentsopentelemetrydeveloper-tools
About
Langfuse is an open-source LLM engineering platform that provides tracing, prompt management, evaluations, and metrics to help developers build and improve AI applications and agents. It integrates with any model or framework via OpenTelemetry and supports 80+ integrations. Teams can self-host or use the cloud version to monitor production workloads at enterprise scale.
Problem
Developers lack deep visibility into LLM application behavior, making it difficult to debug issues, manage prompts, and continuously improve quality, cost, and latency in production.
For
AI/ML engineers and development teams building LLM applications and agents
How it works
Langfuse instruments LLM calls via OpenTelemetry to capture traces, then provides a unified platform for observability, prompt management, evaluations, and experiments to power a continuous improvement loop.
Business model
freemium
Status
launched
Company
Langfuse