Wertheimer v. Ryanair DAC
Small Claims Court · Nov 1, 2025
What happened in this matter?
The court denied the plaintiff's request for legal costs as a direct sanction for the improper use of AI to generate non-existent case law citations in his pleadings, despite the plaintiff partially succeeding on the merits of his underlying claim for a ticket refund.
- Why the court cared
- Fabricated: Case Law
- Why it matters now
- Even a partial win becomes a loss when AI-fabricated citations strip your costs award.
Why this matter is tracked
Fabricated: Case Law Outcome: Costs denied. The plaintiff, who is a lawyer , filed a claim for damages against Ryanair and included citations to several judgments to support his arguments. It was discovered that the plaintiff had used artificial intelligence to search for these judgments and/or draft the claim , and the cited cases "do not exist". The judge strongly condemned this conduct, stating it was improper and that the plaintiff's excuse for filing in haste was not acceptable. The non-existent citations were disregarded, and the court explicitly denied the plaintiff an award of costs (despite partially winning the claim) as a direct result of this conduct.
Even a partial win becomes a loss when AI-fabricated citations strip your costs award.
Record details
What the record establishes about AI use
The court identified the use of AI for searching and drafting.
Small claims court judgment following a hearing on a claim for damages due to flight cancellation.
Correction behavior is not separately verified in the current record.
Tracked discrepancy record
1 citation, quotation, or authority issues are recorded in the source dataset.
- Fabricated: Case Law
Questions this record answers
- What happened in Wertheimer v. Ryanair DAC?
- The court denied the plaintiff's request for legal costs as a direct sanction for the improper use of AI to generate non-existent case law citations in his pleadings, despite the plaintiff partially succeeding on the merits of his underlying claim for a ticket refund.
- Why does Wertheimer v. Ryanair DAC matter for legal AI risk?
- Even a partial win becomes a loss when AI-fabricated citations strip your costs award.
- What does the public record establish about Wertheimer v. Ryanair DAC?
- Retained unchanged after audit: the existing summary is source-specific, non-placeholder, and supported by the recorded source link. Read the underlying source before relying on it for legal advice or a filing.
- Which source supports this Wertheimer v. Ryanair DAC summary?
- The recorded source is Damien Charlotin case archive. It is classified as publisher document archive; review the linked material and subsequent docket history before relying on this summary.
Related matters
Related by court, jurisdiction, tool, or classified failure pattern. Similarity does not imply the same facts or outcome.