Nov 26 (Reuters) - A Texas federal judge sanctioned an

attorney for submitting a court filing with nonexistent cases

and quotations generated by artificial intelligence, as mistakes

by AI continue to land lawyers in hot water.

Ruling in a wrongful termination lawsuit against Goodyear

Tire & Rubber ( GT ), U.S. District Judge Marcia Crone in Beaumont said

Monday that the plaintiff's lawyer, Brandon Monk, must pay a

$2,000 penalty and attend a course about generative AI in the

legal field.

The decision is the latest in a string of cases involving

discipline for lawyers over court documents containing citations

or quotations that were fabricated by AI.

Monk did not immediately respond to a request for comment on

Tuesday. Kelley Edwards of Littler Mendelson, a lawyer

representing Goodyear, declined to comment.

Goodyear's lawyers said in an October court filing that they

could not find several cases that Monk cited in opposing

Goodyear's bid for summary judgment. Crone ordered Monk earlier

this month to explain why he should not be sanctioned for

failing to comply with federal and local court rules, including

a requirement to verify content generated by technology.

Monk in a Nov. 15 filing apologized for what he said was

an unintentional error that stemmed from using an AI legal

research tool. He also said quotations on some information were

"not appropriately placed."

The judge on Monday faulted Monk for failing to verify

the research or correct the issues after Goodyear identified

them.

Federal and state courts nationally are grappling with

the rise of generative AI and have issued orders governing how

lawyers and judges use AI tools, which are prone to making

things up.

The case is Gauthier v. Goodyear Tire & Rubber Co ( GT ), U.S.

District Court for the Eastern District of Texas, No.

1:23-CV-00281

For the plaintiff: Brandon Monk of the Monk Law Firm

For Goodyear: Kelley Edwards and Urvashi Morolia of

Littler Mendelson