The benefits of using event-driven architecture in applications include improved scalability, responsiveness, and flexibility. This architecture allows systems to react to events as they occur, rather than relying on a predefined sequence of operations. As a result, applications can handle real-time data and user interactions more effectively. By decoupling components, event-driven architecture enhances the ability to maintain and expand systems independently, fostering microservices adoption. This approach also simplifies integration with third-party services, enabling efficient responses to changing business needs.