Open source alternatives to Weights and Biases

Langfuse provides tracing, evaluations, prompt management, and analytics to debug and improve LLM applications.

Open-source platform for LLM tracing, evaluation, and optimization. Features automatic instrumentation, prompt playground, and real-time AI application monitoring.

Open-source observability platform for GenAI and LLM applications. Real-time monitoring, distributed tracing, prompt management, and AI model evaluation built on OpenTelemetry.

Open source platform for ML engineers to track metrics, parameters, and gradients in real-time. Features Git integration, alerts, and seamless workflow integration.