Is text from AI plagiarism? How it differs from copying
Plagiarism means passing someone else's work off as your own. Text from a model usually never existed before, so a similarity check will not find it and in the classic sense it is not plagiarism. Most academic codes still treat it as a problem — not as copying, but as undeclared help and a breach of the terms of the assignment. The practical difference is that it is not found by comparing with a source, but in a conversation about the work.
Why a similarity check misses it
Plagiarism systems compare a text with a database of papers and web pages. Generated text comes out differently every time, so it matches no source.
A zero similarity score therefore says nothing about origin. These are two different questions answered by two different tools.
Why it is still a problem
An assignment usually grades not just the result but the fact that the student produced it. Undeclared help breaks that condition whether or not it counts as plagiarism.
Responsibility for the content comes on top. Models invent sources and figures, and whoever submitted the work answers for them.
What to do about it
Look at what your school or newsroom has written down. If the document says nothing about AI, it falls under the general rule about work being your own.
For authors the advice is simple: declare what you used. Declared language editing causes no trouble; undeclared generation does.
FAQ
Will a plagiarism checker find AI text?
Usually not. It looks for overlap with existing texts, and generated text has none. Some systems now add a separate AI estimate, but that is a different task.
Is it plagiarism if I edit the AI text?
Against a source, probably not. Against the assignment it can still be undeclared help — what matters is what you were allowed to do.
Does citing the AI solve it?
It helps as a declaration, but it does not replace a source. The information still has to be traced to where it actually comes from.
Try it on your own text
Paste a text or upload a file and look at the score and at the specific sentences that came out suspicious.
Run a detection