Bot Studio is a Next.js-based web application designed for testing and managing OpenAI models through an interactive chat interface. The application allows users to configure API credentials, manage files for fine-tuning, create and monitor fine-tuning jobs, list and delete custom models, and interact with multiple chat windows to test model responses with configurable parameters. The architecture follows a modular approach with React contexts for global state (OpenAI configuration), Zustand stores for domain-specific state (chats, files, fine-tunes, models), and React Query for data fetching and synchronization with the OpenAI API. The user interface is built using Tailwind CSS and Headless UI, with a collection of custom, reusable components for forms, buttons, modals, and toast notifications. Key features include streaming responses from the OpenAI API via a custom hook, file upload/download utilities, and a responsive layout with a persistent navigation sidebar. The application demonstrates strong engineering practices through its use of TypeScript, strict linting, and well-encapsulated components. Several components, such as the toast notification system, the OpenAI streaming hook, and the form input components, are designed with reusability in mind and could be extracted for use in other projects with minimal modification. The codebase is actively maintained and shows no significant signs of technical debt or dependency decay.