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ey gjøvik who has a juris doctor from santa clara university school of law was admonished in u s district court for the northern district of california usndc by judge edward chen for the inclusion of multiple ai hallucinations in her whistleblower retaliation and wrongful termination case against apple inc gjovik v apple inc warning that future instances would result in gjøvik being held in contempt of court and her pro se privileges revoked the case is foundational in federal rule of civil procedure 11 regarding professional conduct cited repeatedly by other judges as the operative standard 81 it has also been discussed by the american bar association in updating the model professional rules and cited in its opinion regarding the use of generative ai 82 in september 2025 usndc magistrate judge peter kang sanctioned webb law attorney katherine cervantes for her submission of july 21 that included an ai hallucination which she stated had been obtained from westlaw ai the thomson reuters artificial intelligence tool on april 28 2026 judge kang sanctioned and fined webb law group managing partner lenden webb for insufficient supervision of cervantes a junior lawyer incorporating ai for the first time therefore allowing the legal submission that included an ai hallucinated citation of july 21 2025 83 on 18 march 2026 clayton county georgia assistant district attorney deborah leslie appeared before the supreme court of georgia to deliver oral arguments regarding an order to deny an appeal for a murder conviction which a clayton county superior court judge used in denying the defendant s motion during the session chief justice nels s d peterson noted at least five fictitious citations within the filing as well as five others that did not support the proposition for which they were cited on 30 march 2026 leslie admitted in an affidavit to not verifying ai generated expanded legal research used to prepare the order which district attorney tasha mosley corroborated in a written apology to peterson 84 85 on 5 may the supreme court vacated the lower court s ruling and ordered for a new order with legitimate citations to be written leslie was also suspended from practicing before the supreme court for six months and was ordered to take additional education for ethics and proper use of artificial intelligence 86 in april 2026 sullivan cromwell submitted an apology to the u s bankruptcy court for the southern district of new york following boies schiller flexner s discovery of hallucinated legal citations that the opposing legal team had submitted to the court on behalf of client prince global holdings limited 87 88 on 28 april 2026 u s magistrate judge robert t numbers formally reprimanded former assistant u s attorney rudy renfer for having submitted a brief to the court containing fabricated quotes and false legal citations the previous month 74 after which renfer was fired from his position at the united states district court for the eastern district of north carolina where he had served for 17 years 89 canada edit as of 14 june 2026 canadian courts and tribunals have received at least 167 filings containing ai hallucinated fictitious citations across 51 courts and tribunals 90 91 92 on 9 june 2026 the chief justice of canada the right honourable richard wagner p c stated that ai is present in courtrooms in ways both promising and problematic 93 israel edit as of august 2026 israeli courts and tribunals had identified at least 55 cases in which parties submitted documents containing fictitious citations or otherwise ai hallucinated arguments 94 on february 2025 the israeli high court of justice warned litigants that further incidents of this kind would attract sanctions such as personal cost orders or disciplinary proceedings before the bar 95 the emerging israeli case law on ai hallucinations also included instances in which police prosecutors 96 and municipal authorities 97 relied on fictitious statutory provisions england and wales edit further information ayinde v haringey and al haroun v qatar the high court of justice criticised the use of generative ai based pleadings with hallucinated authorities in the conjoined 2025 case of ayinde v haringey and al haroun v qatar 98 in addition the uk s first tier tribunal and upper tribunal has dealt with a number of cases where litigants have generated hallucinated legal citations 99 legal professional bodies have put out guidance on the use of ai including the solicitors regulation authority 100 the law society of england and wales 101 and the bar council 102 in scientific research edit problems edit there are many noted instances of llms citing sources that are either incorrect or do not exist a 2023 study conducted in the cureus journal of medical science showed that out of 178 total references cited by gpt 3 69 returned an incorrect or nonexistent digital object identifier doi an additional 28 had no known doi nor could be located in a google search 103 another instance was documented in 2023 by jerome goddard from mississippi state university in an experiment chatgpt had provided questionable information about ticks unsure about the validity of the response they inquired about the source that the information had been gathered from upon looking at the source it was apparent that the doi and the names of the authors had been hallucinated some of the authors were contacted and confirmed that they had no knowledge of the paper s existence whatsoever 104 goddard says that in chatgpt s current state of development physicians and biomedical researchers should not ask chatgpt for sources references or citations on a particular topic or if they do all such references should be carefully vetted for accuracy 104 the use of these language models is not ready for fields of academic research and that their use should be handled carefully 105 nina schick said that the persuasive quality of hallucinated content generated by ai systems poses risks to democratic institutions by enabling the spread of convincing but false narratives she said the core risk to democracy is a future in which ai is used as an engine to power all information and knowledge consequently degrading trust in the medium of digital information itself she said that the rapid proliferation of generative ai may challenge public trust by blurring the boundaries between verified information and synthetic misinformation 106 on top of providing incorrect or missing reference material chatgpt also has issues with hallucinating the contents of some reference material a study that analyzed a total of 115 references provided by chatgpt 3 5 documented that 47 of them were fabricated another 46 cited real references but extracted incorrect information from them only the remaining 7 of references were cited correctly and provided accurate information chatgpt has also been observed to double down on a lot of the incorrect information when asked about a mistake that may have been hallucinated sometimes chatgpt will try to correct itself but other times it will claim the response is correct and provide even more misleading information 107 these hallucinated articles generated by language models also pose an issue because it is difficult to tell whether an article was generated by an ai to show this a group of researchers at the northwestern university of chicago generated 50 abstracts based on existing reports and analyzed their originality plagiarism detectors gave the generated articles an originality score of 100 meaning that the information presented appears to be completely original other software designed to detect ai generated text was only able to correctly identify these generated articles with an accuracy of 66 research scientists had a similar rate of human error identifying these abstracts at a rate of 68 108 from this information the authors of this study concluded t he ethical and acceptable boundaries of chatgpt s use in scientific writing remain unclear although some publishers are beginning to lay down policies 109 because of ai s ability to fabricate research undetected the use of ai in the field of research will make determining the originality of research more difficult and require new policies regulating its use in the future given the ability of ai generated language to pass as real scientific research in some cases ai hallucinations present problems for the application of language models in the academic and scientific fields of research due to their ability to be undetectable when presented to real researchers the high likelihood of returning non existent reference material and incorrect information may require limitations to be put in place regarding these language models some say that rather than hallucinations these events are more akin to fabrications and falsifications and that the use of these language models presents a risk to the integrity of the field as a whole 110 some academic professionals who support scholarly research such as academic librarians have observed a significant increase in workload related to verifying the accuracy of references 111 zoë teel said in a 2023 paper that universities may need to resort to implementing their own citation auditing in order to track the problem of fictitious references 112 some nonexistent phrases such as vegetative electron microscopy have appeared in many research papers as a result of having become embedded in ai training data 113 benefits edit at the university of washington david baker s lab has used ai hallucinations to design millions of proteins that do not occur in nature leading to roughly 100 patents and the founding of over 20 biotech companies this work contributed to baker receiving the 2024 nobel prize in chemistry although the committee avoided using the hallucinations language 31 at california institute of technology researchers used hallucinations to design a catheter that reduces bacterial contamination the design features sawtooth like spikes on the inner walls that prevent bacteria from gaining traction potentially reducing the number of urinary tract infections these scientific applications of hallucinations differ fundamentally from chatbot hallucinations as they are grounded in physical reality and scientific facts rather than ambiguous language or internet data anima anandkumar a professor at caltech emphasizes that these ai models are taught physics and their outputs must be validated through rigorous testing in meteorology scientists use ai to generate thousands of subtle forecast variations helping identify unexpected factors that can influence extreme weather events 31 at memorial sloan kettering cancer center researchers have applied hallucinatory techniques to enhance blurry medical images while the university of texas at austin has utilized them to improve robot navigation systems 31 hallucinations when constrained by scientific methodology can significantly accelerate the discovery process 31 consequences in education edit artificial intelligence hallucinations can impact education there has been a rise in students using ai tools for assistance in research or writing tools such as grammarly or using generative ai programs such as chatgpt this has raised concern regarding academic integrity 114 in submitted projects in addition to hallucinations causing students to learn incorrect information part of this concern lies in the citations provided by llms and generative ai a 2024 study at the university of mississippi found that many of these citations that students submitted were partially or completely fabricated 47 of these sources either had incorrect titles dates authors or a combination of all 115 the study notes that these inconsistencies in student submitted citations cause educators and librarians to manually check the accuracy more frequently the journal of cranio maxillofacial surgery addresses this risk when it comes to the medical and surgical fields they mention how academic publishers have acknowledged the issue and that some journals such as jama have changed some of their policies to discourage the use of ai generated citations 116 although the journal states that a policy will not be enough to diminish the use of ai generated citations automatic tools to check the citations and ai literacy training should also be adopted instructors may use tools such as turnitin for plagiarism checking and verification of academic integrity these tools have been found to sometimes flag papers that have not used any ai assistance in their writing 117 openai has also found such a lack of accuracy in their own ai detection software that the company shut it down entirely 118 mitigation methods edit as of 2025 there is still ongoing research to try to mitigate the occurrence of hallucinations 119 research in 2022 has shown that language models not only hallucinate but also amplify hallucinations even for those which were designed to alleviate this issue 120 researchers from openai wrote that hallucinations occur because the training and evaluation of llms reward guessing over acknowledging uncertainty and proposed modifying the scoring of benchmarks 41 researchers have proposed a variety of mitigation measures including getting different chatbots to debate one another until they reach consensus on an answer 121 and neuro symbolic architectures with formal knowledge bases and inference engines 12 122 123 ji et al divide common mitigation methods into two categories data related methods and modeling and inference methods data related methods include building a faithful dataset cleaning data automatically and information augmentation by augmenting the inputs with external information model and inference methods include changes in the architecture either modifying the encoder attention or the decoder in various ways changes in the training process such as using reinforcement learning and post processing methods that can correct hallucinations in the output 124 nvidia guardrails launched in 2023 can be configured to hard code certain responses via script instead of leaving them to the llm 125 furthermore tools such as the trustworthy language model have been created to attempt to aid in the detection of hallucination 126 evaluating multiple possible replies before answering a query by assigning confidence scores to each could mitigate the problem however this approach would multiply computational costs active learning would further increase these costs in high stakes domains such as chip design supply chain logistics and medical diagnostics the added costs would be operationally necessary in order for llms to be used in chatbots however customers tend to prefer rapid overconfident answers over cautious uncertainty aware ones 127 see also edit ai alignment ai effect ai safety ai slop artifact artificial stupidity chatbot psychosis memetic algorithm turing test uncanny valley references edit 1 2 hicks michael 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