This repository provides a web-based ChatGPT client built with Python Flask and HTML. It connects to the OpenAI GPT-3.5 API to generate responses that are streamed word-by-word to the user interface. The application supports multiple users with access controls, manages multiple concurrent chat conversations, renders LaTeX formulas, highlights code blocks, and can check API account balances. It is deployable on cloud platforms like Zeabur and Railway.