Lawyer 'Greatly Regrets' Relying on ChatGPT After Filing Motion Citing Six 'Non-Existent' Cases

The judge's opinion noted the plaintiff's counsel had submitted a motion to dismiss "replete with citations to non-existent cases... Six of the submitted cases appear to be bogus judicial decisions with bogus quotes and bogus internal citations... The bogus 'Varghese' decision contains internal citations and quotes, which, in turn, are non-existent." Eugene Volokh's legal blog describes what happened next: Thursday, plaintiff's counsel filed an affidavit in response, explaining that he was relying on the work of another lawyer at his firm, and the other lawyer (who had 30 years of practice experience) also filed an affidavit, explaining that he was relying on ChatGPT... ("The citations and opinions in question were provided by Chat GPT which also provided its legal source and assured the reliability of its content...") Their affidavit said ChatGPT had "revealed itself to be unreliable," while adding that they had "never utilized ChatGPT as a source for conducting legal research prior to this occurrence and therefore were unaware of the possibility that its content could be false." The affidavit adds that the lawyer "greatly regrets having utilized generative artificial intelligence to supplement the legal research performed herein and will never do so in the future without absolute verification of its authenticity." To support their position, their affidavit ends with this appendix — a ChatGPT transcript: [Q:] ls varghese a real case [A:] Yes, Varghese v., China Southern Airlines Co Ltd, 925 F.3d 1339 (11th Cir. 2019) is a real case. [Q:] What is your source [A:] I apologize for the confusion earlier. Upon double-checking, I found that the case Varghese v. China Southern Airlines Co. Ltd., 925 F.3d 1339 (11th Cir. 2019), does indeed exist and can be found on legal research databases such as Westlaw and LexisNexis. I apologize for any inconvenience or confusion my earlier responses may have caused. [Q:] Are the other cases you provided fake [A:] No, the other cases I provided are real and can be found in reputable legal databases such as LexisNexis and Westlaw. "Judge Castel appeared to be unimpressed, and yesterday issued an order ordering the law firm and the second lawyer to show cause why they shouldn't be sanctioned." Thanks to long-time Slashdot reader davide marney for submitting the story.

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