Kratos is an open-source Go framework for building cloud-native microservices. It provides a structured foundation for service development with conventions and components for APIs, configuration, transport, middleware, service discovery, observability, and other concerns commonly needed in distributed backend systems.

The framework is designed for teams that want the performance and simplicity of Go while avoiding the need to assemble every microservice primitive independently. Its architecture encourages clear separation of application layers and supports common production patterns for HTTP and RPC services, configuration, logging, tracing, metrics, and deployment.

Kratos is useful for backend and platform teams building service-oriented systems at scale. It is not primarily an AI framework, but it can provide the service infrastructure around AI products just as it can for other cloud applications, making it relevant wherever robust Go microservices are required.