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https://www.productionai.institute/graph/events/evt-incident-court-filing-hallucinations

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Production AI Institute public record · Reuters: Law Firm AI Hallucinated Fake Case Law in Court Filings · observed 2025-01-01
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incident event
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Reuters: Law Firm AI Hallucinated Fake Case Law in Court Filings

Reuters reported that major law firms were warning lawyers that AI can invent fake case law and that filing hallucinated citations can trigger sanctions. The issue moved from isolated embarrassment to a repeatable legal-risk pattern as generative AI use spread through litigation teams.

Confidence
80%
Sources
2
Entities
1
Detected
detected 577d ago

Event summary

Reuters reported that major law firms were warning lawyers that AI can invent fake case law and that filing hallucinated citations can trigger sanctions. The issue moved from isolated embarrassment to a repeatable legal-risk pattern as generative AI use spread through litigation teams.

D2D6

Linked entities

  • Morgan & Morgan / multiple firms

    organisation | 72%

Related graph edges

EdgeTypeConfidence
ent-org-morgan-morgan-multiple-firms to ent-psf-d2maps to62%
ent-org-morgan-morgan-multiple-firms to ent-psf-d6maps to62%

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Event dates

  • Happened 1 Jan 2025

  • Detected 1 Jan 2025

Sources

  • Law Firm AI Hallucinated Fake Case Law in Court Filings — PAI incident record

    pai assessment | checked 3 July 2026

    Open source
  • Reuters — US judge sanctions lawyers over ChatGPT fake citations

    primary | checked 3 July 2026

    Open source
Cite this record

"Reuters: Law Firm AI Hallucinated Fake Case Law in Court Filings." https://www.productionai.institute/graph/events/evt-incident-court-filing-hallucinations (observed 2025-01-01; retrieved 2026-08-01). PAI.

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