1. ChatGPT, developed by OpenAI, is a general-purpose AI chatbot that uses deep learning to generate text after a user enters a prompt. It's available for free and has a paid version, ChatGPT Plus.
2. The AI model doesn't know or care whether the information it generates is true; this can be problematic when used for tasks like homework or legal matters.
3. OpenAI allows users to object to the processing of their personal information by its AI models, including deletion requests, but it may not grant every request due to freedom of expression and applicable laws.