ChatGPT Writer is an AI-powered writing aid that can be used on a variety of platforms to improve communication. Within any website, it allows users to compose emails and messages, fix grammar, reword material, translate language, and more. The application offers contextual awareness to create relevant responses and interacts easily with Gmail. To meet their unique demands, users can select from a variety of AI models, such as GPT-4.1, Claude, and Gemini. ChatGPT Writer makes writing more efficient and user-friendly by streamlining the process with features like adjustable writing tones, response lengths, and prompt templates.