Klarna AI Customer Service at 85 Million Active Users Scale

Klarna is a leading global fintech company headquartered in Sweden that has deployed a flagship AI Assistant built on LangGraph and powered by LangSmith to handle customer service operations at massive scale. With over 85 million active users and 2.5 million daily transactions, Klarna AI Assistant handles tasks ranging from customer payments and refunds to payment escalations across multi-departmental workflows. The AI system has conducted 2.5 million conversations to date, delivering work equivalent to 700 full-time staff and achieving 80% faster customer resolution times. The LangGraph framework enables controllable agent architecture with decreased latency, improved reliability, and reduced operational costs, while LangSmith provides the observability and evaluation infrastructure needed to scale the system responsibly. Klarna CEO Sebastian Siemiatkowski described LangChain as a key partner in realizing their vision for an AI-powered assistant that scales support and delivers superior customer experiences across global markets.