Light-GPT is a pure front-end web application that provides an interactive chat interface powered by OpenAI’s GPT-3.5-Turbo API. It features streaming responses displayed with a typewriter effect, syntax highlighting for code snippets with one-click copying, and browser-based storage of conversation history using IndexedDB. The app supports text-to-image generation through OpenAI’s image API, exports dialogues as images or PDFs, and includes customizable avatars for both user and AI.