ChatGPT is the AI chatbot made by OpenAI. Launched in late 2022, it is the tool that made generative AI mainstream. You chat with it much like Claude: ask in plain language, get writing, answers, code, and more.
It is a strong all-rounder with a huge user base and a wide add-on ecosystem. The Academy focuses on Claude, but knowing the main tools helps you pick the right one and avoid lock-in.