Lawyers are getting fined for citing fake ChatGPT cases. Verify every citation in 30 seconds before filing. Catch AI hallucinations that could cost you your license.
ChatGPT, Claude, Gemini, and Grok fabricate both citations AND quotes. Since 2023, multiple attorneys have faced sanctions for citing AI-generated fake cases (Mata v. Avianca, Kruse v. Karlen, and others). These tools confidently cite cases that never existed, and even when citations are real, they often fabricate quotes that never appear in the case.
AI tools make up citations AND fabricate quotes from real cases. Verifying citations isn't enough - you need to verify the quotes too.
Read every cited case to verify quotes. Takes 10-30 minutes per case. Still miss fabricated quotes buried in long opinions.
Verify citations AND quotes in 3-5 seconds. Full-text search across 6.7M+ cases. Zero risk, 10x faster.
Paste any quote and instantly discover which case(s) it appears in. Full-text search across 6.7M+ cases in seconds. Perfect for catching AI hallucinations when quotes are misattributed to wrong cases or verifying the source of legal language.
100% detection of fake cases from ChatGPT, Claude, Gemini, and Grok. Catches AI hallucinations before they reach court. Validates parallel citations and page numbers. Multi-source verification prevents sanctions and malpractice.
Type partial case names like "Brown v. Board" and instantly get full citations, case summaries, holdings, and legal significance
Results in under 3 seconds with intelligent caching. Save 10-15 minutes per lookup compared to traditional research
Access 6.7M+ cases from all federal courts and all 50 states (via CourtListener). Historical cases back to 1600s. All major citation formats supported.
Use via web interface or integrate into your document management system with our developer-friendly API
Type or paste any legal citation
Cross-checked against CourtListener, Google Scholar, and AI analysis
Get verified answer in 3-5 seconds
Full context and legal significance
Start with 14-day free trial • No credit card required • Save 3-4 hours per attorney per month
For individual attorneys
2-10 attorneys
11+ attorneys
Legal AI hallucination occurs when AI tools like ChatGPT, Claude, or Gemini fabricate legal citations that look real but don't exist. These tools generate realistic case names, citations, and holdings for cases that were never decided. Recent high-profile sanctions (Mata v. Avianca, Kruse v. Karlen) have resulted in $5,000+ fines and bar complaints for attorneys who unknowingly cited AI-generated fake cases. Our system detects these hallucinations with 100% accuracy.
We cross-check citations against CourtListener (6.7M+ cases from all federal courts and all 50 states, including Harvard's Caselaw Access Project data), Google Scholar, and AI analysis. Citations are validated for format, parallel citations are verified, and results include confidence scoring. All delivered in 3-5 seconds.
All U.S. courts: Supreme Court, all Circuit Courts, District Courts, and all 50 state appellate courts. Historical coverage back to the 1600s. We currently focus on U.S. law and do not support international jurisdictions.
Very recent cases (within 2-3 months) may not be indexed in all legal databases yet. Our system will indicate if a case is too recent to verify with full confidence.
Yes. All plans are month-to-month with no long-term contracts. Cancel anytime from your dashboard.
Yes. We don't sell or share your search data. Citations are cached for performance but never linked to your account or shared with third parties.
No. You can use our web interface directly in your browser without any technical setup. API access is available for firms with IT departments who want to integrate into their systems.