Against the authorities it cites
When the brief cites a judgment, a statute or an article published online, Velydian opens it and checks the quotation, the pinpoint and what was decided.
For legal professionals
Every authority in your brief, read before you file.
Velydian opens each case, statute and article your brief cites and checks whether it says what the brief says it does. Every verdict comes with the passage behind it, before opposing counsel finds it.
Free trial, no card needed.
- Cited or not. Every claim checked, and stronger sources found where the evidence is weak.
- A record you can keep. Annotated document, audit trail and exports, in minutes.
- Swiss and private. Data residency in Switzerland, processing in Switzerland and the EU, GDPR compliant.
VerdictIllustration
CLAIM IN YOUR BRIEFNeeds Revision
“The court held that non-compete clauses are unenforceable.”
What the source says
“The restriction is unenforceable in so far as it extends beyond twelve months.”
Cited judgment, paragraph 41
The court limited its finding to restrictions longer than twelve months. The brief states it as a general rule.
The stakes
What an unsupported claim costs.
17–33%
Purpose-built legal AI research tools hallucinated 17–33% of the time in Stanford's preregistered evaluation.
Magesh et al. (2025), Journal of Empirical Legal Studies 22:216–2421,846
Court decisions worldwide documenting AI-hallucinated content in filings, 717 involving lawyers, as of 5 August 2026.
Charlotin, AI Hallucination Cases Database$110,204
Total sanctions in a single case over fabricated citations, alongside reprimands, disqualification and bar referrals in others.
Couvrette v. Wisnovsky, D. Or. 2025–26What it catches
Six things that go wrong in briefs.
Each one with the claim, the passage Velydian reads, and the verdict. Examples for illustration.
A holding stretched
“The court held that non-compete clauses are unenforceable.”
“The restriction is unenforceable in so far as it extends beyond twelve months.”Needs Revision
The finding is limited to restrictions over twelve months.
An open question cited as decided
“The Federal Supreme Court has held that the notice period applies.”
“Whether the notice period applies can be left open here.”Not Supported
The court expressly left the question open.
A misquotation
“The termination was ‘manifestly abusive’.”
“The termination was not justified.”Not Supported
The judgment does not use the quoted words.
The wrong pinpoint
“See paragraph 52.”
The passage relied on appears at paragraph 38.Needs Revision
Right authority, wrong paragraph.
An authority that does not exist
“Müller v. Weber (2019) confirms this.”
No judgment with these parties and year could be found.Unverifiable
Flagged before filing. The kind of citation courts now sanction.
A commentary where the judgment exists
“As the commentary notes, the duty extends to former employees.”
The commentary cites a judgment that says this directly.Supported
Supported. The judgment itself is offered as the stronger authority.
Not another fact checker
Not just right or wrong. Supported or not.
Velydian checks the quotations and pinpoints. It also weighs what a brief does with an authority: what it says the court decided and how strongly it says it. A quotation can be exact and the submission around it can still mislead the court.
One claim, three levels · illustration
“The court held that such clauses are void.”Needs RevisionSource: the judgment the brief cites. Example for illustration.
- Level 1
Facts
Quotations, pinpoints, parties and dates, checked against the text of the authority.
Does paragraph 41 say void, or voidable?
Velydian findsSupportedThe judgment does find the clause void.A citation check stops here: true. - Level 2
Interpretation
Whether the holding supports the proposition, or only something narrower.
Did the court decide this, or something narrower?
Velydian findsStretchedThe court found it void in a consumer contract. The brief applies it to a contract between two businesses. - Level 3
Judgement
Whether the submission is as strong as the authorities, and what cuts the other way.
Do the authorities checked qualify or contradict it?
Velydian findsOverstatedA later judgment of the same court, found and read, reached the opposite result on similar facts. The brief does not cite it.Verdict: Needs Revision. The quotation is right; the brief claims more than the court decided.
How it works
Upload the brief. Every authority comes back with its evidence.
PDF, Word, text or Markdown, or paste it in. Velydian finds each statement about a case, statute or article and checks it in one of three ways.
Statements with no citation
Velydian searches official websites, research databases and the wider web, keeps the strongest sources and checks the statement against them.
Against your own files
Attach judgments from your research database, the contract or the expert report, and every statement is checked against them. You see the price before it starts.
Three layers of checking
Surface tools check that a source exists. Velydian reads it.
Layer 1
Distortions and inaccuracies
Quotations that drift, pinpoints that miss, a holding quietly widened.
A quotation from a judgment with one word changed.
Layer 2
Bias and fabrication
Authorities that do not exist, a case that says something else, and what was left out.
A case that cannot be found under the parties and year cited.
Layer 3
Stronger sources
When a statement rests on a secondary source, Velydian looks for the authority itself.
A commentary is flagged, with the judgment it relies on offered instead.
One verdict per claim
Four verdicts, each with its evidence.
Supported
The authority checked backs the statement as written.
Needs Revision
Close, but a word in the quotation, the pinpoint or the reach of the holding does not match.
Not Supported
The authority does not back the statement, or decides something different.
Unverifiable
No text could be read or found that settles it, for example a judgment in a paid database you did not attach, or one that does not exist.
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 legal judgement stays with you.
- Drop the brief inPDF, DOCX, TXT, MD or pasted text.
- Every authority is checkedAgainst the cited text, your own files or independent sources.
- Review and correctFix a citation or swap an authority; it re-checks.
- Take the resultAnnotated brief, authority audit trail, executive summary, CSV/JSON exports.
How we test it
Test it on a document you already know.
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.
Every verdict, open to inspectionSource + reasonEach verdict shows the passage it rests on and why, so you can check Velydian itself.In every result
When the sources cannot settle itUnverifiableThe claim is marked Unverifiable, with the reason, for a person to check.One of four verdicts
Your own testYour documentRun a brief where you already know the mistakes, and see whether Velydian finds them.First check free
Review the verdict and the reasoning yourself: every one shows its evidence. Your first check is free.
Today and with Velydian
From hours of checking to minutes.
Manual cite-checking
Hours per brief, risk at filing
- Minutes per citation, quotations checked by hand
- Misquoted precedents slip through; opposing counsel finds them first
- Fabricated references: court sanctions are now on the record
- No audit trail: nothing to show how the brief was checked
Velydian on your briefs
Checked before it is filed
- A full brief checked in minutes
- Every claim checked against the text of the authority
- References that cannot be found are flagged
- The quoted passage behind every verdict, kept as an audit trail
What it checks
The documents your team signs.
- Briefs and pleadings
- Legal opinions and memos
- Due-diligence reports
- Contracts that cite statutes
- Expert reports
- Regulatory filings
- Law review articles
- Client alerts and newsletters
Who uses it
Across the team.
- PartnersSign off knowing which authorities were read, and which could not be.
- AssociatesTake the cite-check off the night before filing.
- Knowledge lawyersKeep client alerts and know-how accurate.
- In-house counselCheck outside counsel’s work before relying on it.
What you get back
A record you can keep.
- The annotated briefEvery claim marked with its verdict, in place.
- An authority audit trailFor each citation, the passage relied on and the reasoning.
- Stronger authoritiesWhere a citation is weak or secondary, a primary authority found for your review.
- ExportsExecutive summary, CSV and JSON for your file.
Cost
You see the price before you start.
Checking a brief by handCHF 450your rate × your hours
With Velydian, pay as you goCHF 4.8094× cheaper30 cited claims drawn from 10 sources: 160 credits
At the Founder rateCHF 1.60281× cheaperthe same brief, CHF 0.01 per credit
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
Before your first brief.
Does Velydian give legal advice?
No. It checks whether each authority says what your document says it does, and shows you the passage. The legal judgement stays with you.
Is client confidentiality protected?
Your data resides in Switzerland and is processed in Switzerland and the EU, under GDPR and Swiss data protection law.
What about judgments in paid databases?
Attach the judgment as a PDF and the statement is checked against it. Without the text, the verdict says Unverifiable instead of guessing.
Where do the sources come from?
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.
What happens to my document?
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.
Which languages does it check?
English is measured and in daily use. German and French are in validation.
Can I rely on Velydian as my only check?
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
Data in Switzerland. Processing in Switzerland and the EU.
- Data residency in Switzerland, processing in Switzerland and the EUGDPR and Swiss data protection terms are covered by our Data Processing Agreement.
- A Swiss companyVelydian is built by MindtheGap Sàrl in Geneva.
Check your next brief before someone else does.
Also for: AI answersMediaFinanceResearchComplianceConsultingInvestmentHRInsuranceSustainability