Eino Extensions enhances the Eino framework by providing official implementations for various component types used in building Large Language Model (LLM) applications. These extensions include implementations for ChatModels (like OpenAI, Claude, Gemini), Tools (like Google Search, Duck Duck Go), Retrievers, ChatTemplates, Document Loaders/Transformers, Indexers, Embedding, and Lambda functions. It also offers official callback handlers, such as Langfuse tracing, and DevOps tools like IDE plugins for visualized debugging and UI-based graph editing.