ChatGPT Next is a chat client application that mimics the WeChat messaging interface, allowing users to interact with OpenAI’s language models including o1, o1-mini, gpt-4o, and gpt-4o-mini. The project is built with Next.js and TypeScript, and supports private deployment via Vercel, Zeabur, or Netlify. Users can configure API keys using aliases to safely share the application without exposing credentials.