Quebec man ordered to pay $1,000 after using fake AI-generated court cases
A Quebec Court of Appeal decision shows how a man cited fake legal cases created by ChatGPT, then continued with them even after learning they were false.
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A Quebec man has been ordered to pay $1,000 after filing court arguments that included legal cases he fabricated using ChatGPT, according to an August 11 decision from the Quebec Court of Appeal.
The man was representing himself in a dispute over asset division following his divorce. He cited four court decisions that did not exist, including two he claimed were from the Supreme Court of Canada. He learned during a consultation with a lawyer that the cases were not real but filed his arguments anyway without removing the fake citations.
During the hearing, the man only disclosed that ChatGPT had generated the false cases when questioned by the judges. The court found that knowingly submitting fabricated legal authority was a serious breach that created unnecessary work for both the court and his ex-wife.
In addition to the $1,000 penalty, the man was ordered to cover the costs of the appeal. The decision underscores a growing concern about AI tools being used to generate plausible-sounding but entirely fictional legal citations—a risk that spans courtrooms across Canada.
By the numbers
How much did the Quebec man have to pay?
$1,000. The Quebec Court of Appeal imposed this penalty on August 11, 2026, after he submitted fabricated legal cases generated by ChatGPT in a divorce asset division dispute.
How many fake court cases did he cite?
Four cases, two of which he falsely claimed were Supreme Court of Canada decisions. The man learned during a lawyer consultation that none of these cases actually existed but filed his arguments with the fake citations anyway.
