This library lets developers create dynamic, interactive user interfaces in Flutter applications using generative AI. It enables real-time UI updates based on user interactions and integrates with various LLMs and backend systems. The package uses a JSON-based format for easy UI composition.

TOON is a compact format designed for encoding JSON data, making it easier for large language models to process. It combines YAML's structure with a CSV-like layout to reduce token usage while maintaining accuracy. While effective for uniform arrays, it's less suitable for deeply nested data.

The article introduces Token-Oriented Object Notation (TOON), a compact data format designed to reduce token usage when passing structured data to Large Language Models (LLMs). TOON is more efficient than traditional formats like JSON and XML, achieving up to 60% fewer tokens while maintaining readability and structure, particularly for uniform complex objects. It combines features from YAML and CSV to optimize data representation for AI applications.