The ChatGPT Default Model Selector is a user-friendly Chrome extension designed to enhance your experience with ChatGPT. Users can seamlessly set their default model to either GPT-4, GPT-3.5, or other available versions, making it beneficial for those who regularly switch between models. With this extension, all new conversations will automatically use the selected model, saving time and ensuring consistency for users engaged in various tasks like writing, coding, or brainstorming.