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Sanctions — Week of 2025-09-29

24 AI-hallucination sanctions decided between 2025-09-29 and 2025-10-05 (ISO week 2025-W40). Every ruling below is sourced from the public docket — case name, decided date, outcome, AI tool implicated (when named), and any monetary penalty language pulled verbatim from the ruling.

Week at a glance

Total rulings
24
With monetary penalty
8 of 24
Courts
21
ISO week
2025-W40

Outcomes this week

  • Warning5
  • Action Dismissed With Prejudice1
  • Brief Struck; Monetary Penalty Or Two Hours Of Ai-specific Cle; Referral To Bar1
  • Case Dismissed1
  • Conduct Described As Abuse Of Process1
  • Costs And Order To Inform Client1
  • Costs Order; Order To Notify Bar1
  • Costs Order; Referral To Bar Authorities1
  • Monetary Fine1
  • Monetary Sanction For Procedural Misconduct1
  • Monetary Sanction; 1h Of Cle; Referral1
  • No Sanction1
  • One-year Filing Bar.1
  • Osc/motion Denied; No Sanctions Imposed.1
  • Published Order; Monetary Sanction Payable By Counsel (who Withdrew); State Bar Notified1
  • Show Cause Order1
  • Warning; Allowed To File Corrected Brief1

AI tool implicated

  • Implied12
  • Unidentified9
  • ChatGPT1
  • Grammarly; ProWritingAid1
  • Microsoft Copilot1

This week’s read-across

24 rulings landed on the docket between 2025-09-29 and 2025-10-05. The most common recorded outcome this week was Warning (5 of 24). Of the 24 rulings, 8 carried an explicit monetary penalty in the ruling text.

Implied was the most-implicated AI tool this week (courts rarely require the attorney to name the tool by product name on the record; “Implied” means the ruling described an AI-generated brief without a product name).

The pattern each week is remarkably stable: existence failures (Layer 1) dominate. Attorneys file briefs containing citations that do not exist in any primary source — usually because a general-purpose LLM fabricated the citation and no deterministic pre-filing check caught it. Every ruling below is a preventable filing. See /verify for the pre-filing tool.

All rulings, week of 2025-09-29

Courts represented this week

Nearby weeks

← Prev: 2025-W39 (24)Next: 2025-W41 (20) →

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Informational only. Not legal advice. Data derived from public court records; corrections at /contact.