Claude is not a legal entity, it is a software tool that outputs text based on statistics. There is a user that used a tool to create text and that user is the legal entity responsible for the text in any legal way that matters.
Anything else would be completely ridiculous given current laws in most countries.
It would be as ridiculous as blaming the car in a car accident where you drove over someone.
Those "statistics" that the output is based on are often under licenses that forbid making proprietary software with them for example. It is not the same as using Word.
The statistics is generally not. But the data used to learn the statistics may have been under license.
Learning from licensed material is generally accepted in humans, you may learn from something and then create something else and the new thing is not considered legally problematic with the exception of patents i guess.
Whether the same thing holds true for electronic systems is where people disagree if you look at the problem space in its essence. I land on the side that it is the same thing(humans and electronic systems learning), some seam to think it is a different thing.
> Claude is not a legal entity
And?
>It would be as ridiculous as blaming the car in a car accident where you drove over someone.
No more ridiculous than you posting something you know nothing about.
Just because you don't get the copyright doesn't mean claude does. The fact that claude is not a legal entity has no bearing on whether or not you are entitled to a copyright for a work you did not create.
If neither the user or the tool created and is responsible for the text, who is in your mind?