What counts as “plagiarism” depends on the context. It is (in most cases) unethical to present the work of another human being as your own, but what about an AI? In an educational setting, it would be unethical to turn in an AI’s work as your own. But if a professional programmer uses GitHub Copilot, are they obliged to acknowledge Copilot’s contribution? If I have a personal blog, and ChatGPT helps me write a post, am I obliged to acknowledge ChatGPT’s contribution?