This is Hacker News so the conversation is obviously slanted towards code, but I wonder what the perspective would look like for other structured works, like bo

This is Hacker News so the conversation is obviously slanted towards code, but I wonder what the perspective would look like for other structured works, like books? If an author is using a "copilot for writers" and the AI emits text verbatim to another work, then I would think it would be plagiarism. If the text emitted is similar, but not the same, then I would think it would be considered paraphrasing which still requires attribution.