A plaintiff’s lawyer asked ChatGPT for relevant citations. ChatGPT made some up. The lawyer cited them in court filings.
Defending lawyers expressed puzzlement. The plaintiff’s lawyer asked ChatGPT to provide more info about the cases. ChatGPT obligingly made up the decisions in these nonexistent cases. The plaintiff’s lawyer submitted that output to the court.
At some point, plaintiff’s lawyer asked ChatGPT whether the cases were real, and ChatGPT said they were, and plaintiff’s lawyer didn’t bother to check beyond that.
When confronted by the judge about all these made-up filings, plaintiff’s lawyer apologized and said he didn’t know that ChatGPT could make stuff up.
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