Eino is a Go-based framework designed to streamline the development of LLM applications, drawing inspiration from projects like LangChain and LlamaIndex. It offers reusable component abstractions, a composition framework for type checking and stream processing, and a simple API. Eino standardizes and simplifies AI application development, providing tools for visualized development, debugging, online tracing, and evaluation, enabling developers to create scalable, reliable, and effective AI solutions.