There's definitely a tension in my mind between the idea that prompts, which on their own could attract some level of copyright[1], do not produce copyrightable

There's definitely a tension in my mind between the idea that prompts, which on their own could attract some level of copyright[1], do not produce copyrightable elements in the output and the plaintiffs' claims in the copyright lawsuits against LLM companies that training inputs do. I'm not sure which side I even agree with more, let alone which side has the stronger legal case (and the balance point will certainly be different in different jurisdictions). [1]: tweets are copyrightable (subject to the usual creative input, originally, etc requirements) and a detailed AI prompt can certainly be as involved as a tweet.