AI citation FAQ
Ten questions we get asked most, answered with real cases, real numbers, and real sources — not template filler.
Every answer below links to the primary source or the underlying database row it draws from. Where the honest answer is “it depends” or “the rules vary by jurisdiction,” we say that plainly instead of pretending to a certainty that doesn’t exist.
- What is an AI-hallucinated citation?
An AI-hallucinated citation is a case, statute, or quotation an AI tool invented that doesn't exist or doesn't say what it's cited for. The three failure modes, explained with real sanctioned cases.
- How do I check if a case citation exists?
Step-by-step: how to verify a case citation actually exists using CourtListener, PACER, and reporter volumes — and why asking the AI that generated it is the one method that doesn't work.
- What sanctions have courts imposed for AI-hallucinated citations?
From $1 nominal fines to $110,204 adverse-costs orders: the real range of court sanctions for AI-hallucinated citations, with case names, courts, and outcomes pulled live from the database.
- How do you verify a legal citation manually?
The manual, four-step process for verifying a legal citation by hand — existence, quote accuracy, holding, and currency — plus what each step actually costs in time.
- How does Citation Safe compare to other citation-checking tools?
An honest comparison of Citation Safe against other AI citation-checking tools: what existence-only checkers catch, what they miss, and where a 3-layer verification stack differs.
- Does Rule 11 apply to AI-generated briefs?
Yes — Federal Rule of Civil Procedure 11 applies to AI-generated briefs the same as any other filing. What the rule requires, and what Mata, Park v. Kim, and Kruse v. Karlen held about the 'the AI told me it was real' defense.
- Which law firms have been sanctioned for AI-hallucinated citations?
Real, named sanctions against law firms and attorneys for AI-hallucinated citations — from Mata v. Avianca's $5,000 fine to 2026 bar referrals and firmwide citation-review orders.
- How much are AI citation sanctions?
Live aggregate data from Citation Safe's sanctions database: total cases, how many carried a monetary penalty, and the sum, average, and largest USD-denominated sanction on record.
- Do bar rules require disclosing AI use to clients or courts?
What ABA Formal Opinion 512 and federal standing orders actually require on AI disclosure — and what they don't. Verified public sources, honest hedging where the rules genuinely vary.
- What tools catch AI-hallucinated citations?
A category overview of citation-verification tools — free primary-source databases, citator services, and dedicated AI-hallucination checkers — and what each one actually catches.
Related resources
- Verify a citation now
- Full sanctions database
- How to verify a case citation is real
- AI-Citation Sanction Weekly (free newsletter)
Written by the Citation Safe Research Desk · Reviewed by Andy Gaber, Founder