Against the sources it cites
When the copy links a report, a transcript or a release, Velydian opens it and checks the figure, the wording and the date against it.
For journalists and editors
Velydian follows each statistic, quotation and attribution back to its source and checks that the piece reports what the source actually says.
Free trial, no card needed.
“A new report found that 60% of teenagers are addicted to their phones.”
“60% of respondents said they spend too much time on their phones.”
Cited survey report, page 3
The survey measured how teenagers rate their own screen time. It does not measure addiction.
The stakes
AI assistant answers about the news with at least one significant issue, judged by journalists from 22 public service media organisations.
EBU & BBC (2025), News Integrity in AI AssistantsMisinformation and disinformation ranked the most severe global risk for the next two years by 1,490 experts.
World Economic Forum, Global Risks Report 2024More research papers with at least one fabricated reference in under three years: the studies newsrooms cite are not immune.
Topaz et al. (2026), The LancetWhat it catches
Each one with the claim, the passage Velydian reads, and the verdict. Examples for illustration.
“60% of teenagers are addicted to their phones.”
“60% of respondents said they spend too much time on their phones.”Needs Revision
Self-reported screen time is not addiction.
“The minister said the project was ‘a total failure’.”
“Parts of the project have not met expectations.”Not Supported
The transcript does not contain the quoted words.
“Study proves coffee prevents dementia.”
“Coffee intake was associated with a lower risk.”Needs Revision
An observational association, reported as proof.
“Unemployment stands at 4.1%.”
“Unemployment: 3.6% (latest quarter); 4.1% (same quarter, prior year).”Needs Revision
4.1% is last year’s figure.
“Experts say 1 in 3 jobs will vanish.”
Traced: the figure comes from a 2013 working paper on jobs at risk of automation, not jobs that will vanish.Needs Revision
The original measured exposure, not losses. The original document is offered as the source.
“Officials confirmed the death toll.”
No official statement with this figure could be found.Unverifiable
Flagged before print, so the desk can find the statement or drop the line.
Not another fact checker
Velydian checks the figures and quotes. It also weighs what a piece does with them: the story it tells and how strongly it tells it. A figure can be right and the sentence around it can still mislead readers.
“The new policy cut knife crime by 20%, police figures show.”Needs RevisionSource: the police release the piece cites. Example for illustration.
Figures, dates, names and quotations, checked against what the source actually says.
Does the release say 20% or 2%?
Whether a conclusion follows from the source, or reaches further than it.
Did the policy do this, or did the fall start earlier?
Whether the statement is as strong as its evidence, and what was left out.
Is this what readers need to know?
How it works
PDF, Word, text or Markdown, or paste it in. Velydian finds each figure, quotation and attribution and checks it in one of three ways.
When the copy links a report, a transcript or a release, Velydian opens it and checks the figure, the wording and the date against it.
Velydian searches official statistics, research databases and the wider web, keeps the strongest sources and checks the claim against them.
Attach interview transcripts, court documents or the report you were sent, and every claim is checked against them. You see the price before it starts.
Three layers of checking
Figures that drift, dates that shift, a quotation reworded.
Last year’s unemployment rate reported as this year’s.
Quotes nobody said, a source that says something else, and what was left out.
A quotation the transcript does not contain.
When a claim rests on second-hand reporting, Velydian looks for the original.
A figure from another outlet’s story is flagged, with the original report offered instead.
One verdict per claim
The source checked backs the figure or quote as written.
Close, but a number, the date or the strength of the wording does not match the source.
The source does not back the claim, or says something different.
No source could be read or found that settles it, for example a statement no one can locate.
Open any verdict to see the passage and the reasoning behind it. Correct a line or swap a source and it is checked again. Velydian weighs the evidence; the desk decides what runs.
How we test it
Our published test results so far are on company reports: see Velydian for Finance. For every other kind of document, the best test is one of your own.
Review the verdict and the reasoning yourself: every one shows its evidence. Your first check is free.
Today and with Velydian
What it checks
Who uses it
What you get back
Cost
Checking a claim costs 5 credits and reading a source costs 1. Deeper source audits cost more. Your reviewers still read the verdicts; Velydian takes the tracing off their desk.
Questions
No. It does the tracing: finding and reading the source behind each claim. Your fact-checkers keep the judgement, with the evidence laid out for them.
Yes. For a claim without a cited source, Velydian searches for the strongest sources and checks the claim against them.
Velydian checks against sources it can read, including transcripts and notes you attach. If no source settles a claim, the verdict is Unverifiable, so the desk knows it still rests on reporting alone.
Yes. The audit trail shows the passage behind each verdict and can be exported as CSV or JSON for your standards file.
Three places. The sources your document cites; sources Velydian finds on official websites, research databases and the wider web for claims without a citation; or your own files, if you attach them.
When you run a check, your document’s text is sent over an encrypted connection to our servers and AI services in Switzerland and the EU. To find evidence, short search queries built from your claims are sent to web and scholarly search services. Your document’s content and results are deleted automatically about 24 hours after your check; source links and summary data are kept.
English is measured and in daily use. German and French are in validation.
Velydian supports human review. It shows the evidence behind every verdict so you can decide. In high-stakes work, expert judgement stays essential.
A Swiss company
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