Unnamed Brazilian litigant
6th Civil Chamber, Court of Justice of Santa Catarina · Feb 18, 2025
What happened in this matter?
Outcome: Appeal partially granted (reintegration suspended, rent imposed), but litigant sanctioned for bad-faith litigation; 10% fine on the updated value of the case; copy of filing sent to OAB-SC for disciplinary review.
- Why the court cared
- The court emphasized that the legal profession is a public calling entailing duties and responsibilities. It cautioned that AI must be used “with caution and restraint”. The chamber unanimously supported the sanction
- Why it matters now
- Brazilian appellate courts now send fabricated-citation filings to the OAB as bad-faith litigation — 'unintentional' ChatGPT use is no defense.
Why this matter is tracked
Outcome: Appeal partially granted (reintegration suspended, rent imposed), but litigant sanctioned for bad-faith litigation; 10% fine on the updated value of the case; copy of filing sent to OAB-SC for disciplinary review.
AI Use
The appellant’s counsel admitted to having used ChatGPT, claiming the submission of false case law was the result of “unintentional use.” The fabricated citations were used in an appeal against a reintegration of possession order, in favor of the appellant’s stepmother and father’s heirs.
Hallucination Details
The brief contained numerous non-existent judicial precedents and references to legal doctrine that were either incorrect or entirely fictional. The court described them as “fabricated” and considered them serious enough to potentially mislead the court.
Ruling/Sanction
While the 6th Civil Chamber temporarily suspended the reintegration order, it further imposed a 10% fine on the value of the claim for bad-faith litigation and ordered that a copy of the appeal be forwarded to the Santa Catarina section of the Brazilian Bar Association (OAB/SC) for further investigation.
Key Judicial Reasoning
The court emphasized that the legal profession is a public calling entailing duties and responsibilities. It cautioned that AI must be used “with caution and restraint”. The chamber unanimously supported the sanction.
Brazilian appellate courts now send fabricated-citation filings to the OAB as bad-faith litigation — 'unintentional' ChatGPT use is no defense.
Record details
What the record establishes about AI use
ChatGPT is recorded in the source dataset; confirm the basis in the linked document.
Appeal partially granted (reintegration suspended, rent imposed), but litigant sanctioned for bad-faith litigation; 10% fine on the updated value of the case; copy of filing sent to OAB-SC for disciplinary review
Correction behavior is not separately verified in the current record.
Questions this record answers
- What happened in Unnamed Brazilian litigant?
- Outcome: Appeal partially granted (reintegration suspended, rent imposed), but litigant sanctioned for bad-faith litigation; 10% fine on the updated value of the case; copy of filing sent to OAB-SC for disciplinary review.
- Why does Unnamed Brazilian litigant matter for legal AI risk?
- Brazilian appellate courts now send fabricated-citation filings to the OAB as bad-faith litigation — 'unintentional' ChatGPT use is no defense.
- What does the public record establish about Unnamed Brazilian litigant?
- The record summarizes the outcome described in the linked public source. The recorded link is a secondary or other public source and should be checked against the docket where available. This page is not a substitute for the complete docket, subsequent history, or jurisdiction-specific advice.
- Which source supports this Unnamed Brazilian litigant summary?
- The recorded source is tjsc.jus.br. It is classified as secondary or other linked source; 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.