RAG Observability and Evaluations with Langfuse

Description

This video demonstrates tracing RAG-based application with Langfuse, using evals to make decisions on RAG pipeline components like chunking, and having application-level evals to measure overall pipeline performance. Guide: https://langfuse.com/blog/2025-10-28-rag-observability-and-evals 00:00 Introduction 00:22 Tracing RAG-based applications 01:40 Evaluating vector chunk sizes and overlaps 04:10 Evaluating overall RAG-based application 05:17 Conclusion