Gevent is an asynchronous networking library for Python that leverages greenlet, a lightweight coroutine library for Python, to provide a high-performance network programming model. It allows developers to create highly concurrent applications by managing multiple event loops and performing non-blocking I/O operations efficiently. This is achieved through its coroutine-based programming model, which simplifies the development of networked applications by abstracting the complexity of thread management and I/O operation. Gevent is particularly beneficial for creating scalable network servers and applications that require handling a large number of simultaneous connections.