While ChatGPT has existed in various forms for some time, its true mainstream success began with the release of GPT-3 in 2020. Since then, ChatGPT has evolved significantly, both for better and worse.
ChatGPT 5 is the default chatbot version for the ChatGPT web, desktop, and mobile apps for logged-in users, but subscribers who don't like the newest OpenAI model family can easily access GPT-4o, ...