Fastweb + Vodafone: Transforming Customer Experience with AI Agents using LangGraph and LangSmith

Fastweb + Vodafone utilized LangChain and LangGraph to build AI agents that transform customer service and call center operations. The company developed two primary systems: "Super TOBi," a customer-facing agentic chatbot, and "Super Agent," an internal tool that provides real-time guidance to human consultants. The architecture employs a Supervisor agent for routing queries to specialized agents that use patterns like the LLM Compiler and Retrieval-Augmented Generation (RAG) with a Neo4j knowledge graph. The entire system is monitored and evaluated using LangSmith to ensure high performance, achieving a 90% correctness rate and an 86% one-call resolution rate.