An appellate court has imposed sanctions on a Utah attorney for citing a fictitious legal case, generated by ChatGPT, in court documents. The attorney acknowledged the mistake, yet the court determined that he neglected his duty of thorough review. Consequently, he was ordered to reimburse the opposing counsel's fees, refund client funds, and contribute to a public welfare organization. This case has ignited widespread debate on the integration of AI in the legal profession, underscoring the importance for lawyers to meticulously validate information sourced from AI tools, thereby upholding the credibility and professionalism of the legal industry.