Citation check
See what’s really behind the citations. Caus checks whether the sources cited for a claim are genuinely different — or the same coverage repeated.
Paste an AI answer, article, or source list — Caus checks how the citations relate, not whether the claim is true, and makes no accuracy claim. See how it works.
Illustrative example
SyntheticClaim: “A startup raised a $120M round.”
4 citations → 2 distinct stories
Why grouped: their excerpts share near-identical wording, so they repeat one story.
Its wording didn't closely overlap any other citation, so it stands on its own here.
Every result comes with a citation report explaining the grouping.
Run an exampleWhat Caus checks today
Repeated coverage
Whether the sources cited for a claim repeat the same story, using the text you paste. That is the one check Caus runs today.
Not checked
Caus does not judge whether the claim is true, rate how reliable a source is, check whether links work, or prove that a source with no strong match is genuinely independent.
AI answers with footnotes
See whether the cited sources are genuinely different or just repeat the same coverage.
Research briefs
Check whether a source list adds new reporting or mostly repeats one story.
Due-diligence memos
Separate distinct stories from repeated coverage before you trust the pile of citations.
From a claim to a repeated-coverage check, in three steps.
Paste an AI answer, article, research summary, or list of sources, then add the relevant source text for each citation Caus recognizes.
Sources that repeat the same underlying story are grouped together, so repeated coverage doesn't count as fresh support.
See how many distinct stories the citations really represent, with a short report explaining each grouping.
Paste an AI answer, article, or source list and see how many distinct stories are really behind the citations.