Flycatcher v. Affable Avenue (1)
S.D. New York · Jul 18, 2025
What happened in this matter?
The court identified that counsel submitted a brief containing a fabricated quote attributed to Mata v. Avianca, which was actually sourced from a third-party article. The court rejected counsel's reliance on AI hallucination as an excuse for failing to verify citations, denied a request to amend the filing, and reserved its decision on sanctions pending a scheduled hearing.
- Why the court cared
- The court reasoned that counsel's errors were not inadvertent but resulted from deliberate choices to rely on unverified AI-generated content, violating the professional obligation under Rule 11 to ensure the accuracy of legal submissions.
- Why it matters now
- Never quote Mata v. Avianca from memory; verify every case-law quote against the primary source before filing.
Why this matter is tracked
In a contract dispute, the court issued an Order to Show Cause regarding potential Rule 11 sanctions after counsel submitted a brief containing fabricated case citations. The court identified that counsel misattributed a quote to the decision in Mata v. Avianca, which actually originated from a 2023 article by Christopher F. Lyon. The court expressed concern that counsel may have used a large language model to draft the response without verifying the accuracy of the citations. Counsel attempted to blame database migration issues and AI hallucination for the errors, but the court rejected these justifications, noting a professional obligation to verify all filings. The court denied counsel's request to amend the brief and reserved its decision on sanctions pending an August 2025 conference.
Never quote Mata v. Avianca from memory; verify every case-law quote against the primary source before filing.
Record details
What the record establishes about AI use
Court references counsel's use of AI technology.
The court issued an Order to Show Cause regarding Rule 11 sanctions, reviewed counsel's response, and subsequently reserved its decision on sanctions pending an in-person conference.
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.
- False Quotes: Case Law | Response misattributed a quote to Mata; court found it appears nowhere in Mata and actually comes from a 2023 article by Christopher F. Lyon, with no attribution.
Questions this record answers
- What happened in Flycatcher v. Affable Avenue (1)?
- The court identified that counsel submitted a brief containing a fabricated quote attributed to Mata v. Avianca, which was actually sourced from a third-party article. The court rejected counsel's reliance on AI hallucination as an excuse for failing to verify citations, denied a request to amend the filing, and reserved its decision on sanctions pending a scheduled hearing.
- Why does Flycatcher v. Affable Avenue (1) matter for legal AI risk?
- Never quote Mata v. Avianca from memory; verify every case-law quote against the primary source before filing.
- What does the public record establish about Flycatcher v. Affable Avenue (1)?
- The record summarizes the outcome described in the linked public source. The recorded document is hosted in the upstream publisher archive. This page is not a substitute for the complete docket, subsequent history, or jurisdiction-specific advice.
- Which source supports this Flycatcher v. Affable Avenue (1) 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.