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Text of the page (random words):
hat such chatbots often seem to pointlessly embed plausible sounding random falsehoods within their generated content 24 many news outlets including the new york times started to use hallucinations to describe these models frequently incorrect or inconsistent responses 25 in 2023 the cambridge dictionary updated its definition of hallucination to include this new sense specific to the field of ai 26 some researchers have highlighted a lack of consistency in how hallucination is used but also identified several alternative terms in the literature such as confabulations fabrications and factual errors 13 definitions and alternatives edit ai overviews result 10 august 2025 incorrectly stating that joaquín correa is the brother of ángel correa the two are unrelated 27 uses definitions and characterizations of the term hallucination in the context of llms include a tendency to invent facts in moments of uncertainty openai may 2023 28 a model s logical mistakes openai may 2023 28 fabricating information entirely but behaving as if spouting facts cnbc may 2023 28 making up information the verge february 2023 29 misleading and or nonsensical factual errors algorithm watch and ai forensics december 2023 30 probability distributions in scientific contexts 31 in july 2024 a white house report on fostering public trust in ai research mentioned hallucinations only in the context of reducing them notably when acknowledging david baker s nobel prize winning work with ai generated proteins the nobel committee avoided it entirely instead referring to imaginative protein creation 31 hicks humphries and slater in their article in ethics and information technology argue that the output of llms is bullshit under harry frankfurt s definition and that the models are in an important way indifferent to the truth of their outputs with true statements only accidentally true and false ones accidentally false 1 9 some researchers also call the uncritical use of ai botshit 32 the term mirage has been proposed as an alternative to the use of hallucination framing false or misleading responses as predictable results of llm data processing created by both ai training datasets and the rules engineered into the llm rather than a mental breaking from reality 5 this shift in language aims to increase ai literacy by using terminology that avoids anthropomorphic implications that llms have conscious minds with their own intent shows that untrue outputs come from patterns in training data and indicates that outputs are novel syntheses of training data requiring critical human judgment criticism edit in the scientific community some researchers avoid hallucination as potentially misleading usama fayyad executive director of the institute for experimental artificial intelligence at northeastern university criticized it because it misleadingly personifies large language models and is vague 33 the computer scientist mary shaw has said the current fashion for calling generative ai s errors hallucinations is appalling it anthropomorphizes the software and it spins actual errors as somehow being idiosyncratic quirks of the system even when they re objectively incorrect 10 the statistician gary smith argues that llms do not understand what words mean and consequently that hallucination unreasonably anthropomorphizes the machine 11 murray shanahan argues that anthropomorphic framing of llm capabilities including terms like hallucination encourages users and researchers to attribute cognitive processes to systems that operate through statistical pattern completion and advocates more careful linguistic practices when discussing llm behavior 34 kristina šekrst argues that applying psychological vocabulary to llm outputs obscures the difference between the appearance of mental properties and their genuine presence 35 förster skop assert that tech companies use the hallucination metaphor to anthropomorphize models and deflect responsibility for non factual outputs 36 in january 2026 researchers emily m bender and nanna inie broadly criticized the anthropomorphization of ai in an op ed 37 later proposing undesirable output as a linguistic alternative 38 some see the ai outputs not as illusory but as prospective that is having some chance of being true similar to early stage scientific conjectures the term has also been criticized for its association with psychedelic drug experiences 31 in natural language generation edit a translation on the vicuna llm test bed of english into the constructed language lojban and then back into english in a new round generates a surreal artifact from genesis 1 6 rsv failed verification in natural language generation there are several reasons why natural language models hallucinate 39 hallucination from data edit hallucinations can stem from incomplete inaccurate or unrepresentative data sets 40 modeling related causes edit the pre training of generative pretrained transformers gpt involves predicting the next word it incentivizes gpt models to give a guess about what the next word is even when they lack information 41 some researchers take an anthropomorphic perspective and posit that hallucinations arise from a tension between novelty and usefulness for instance amabile and pratt define human creativity as the production of novel and useful ideas 42 by extension a focus on novelty in machine creativity can lead to the production of original but inaccurate responses that is falsehoods whereas a focus on usefulness may result in memorized content lacking originality 43 by 2022 newspapers such as the new york times expressed concern that as the adoption of bots based on large language models continued to grow unwarranted user confidence in bot output could lead to problems 44 interpretability research edit in 2025 according to interpretability research by anthropic on claude the llm appears to have internal circuits that cause it to decline to answer questions unless it knows the answer by default the circuits are active and the llm doesn t answer when the llm has sufficient information these circuits are inhibited and the llm answers the question the researchers said that hallucinations were found to occur when this inhibition happens incorrectly such as when claude recognizes a name but lacks sufficient information about that person causing it to generate plausible but untrue responses 45 examples edit on 15 november 2022 researchers from meta ai published galactica 46 designed to store combine and reason about scientific knowledge content generated by galactica came with the warning outputs may be unreliable language models are prone to hallucinate text in one case when asked to draft a paper on creating avatars galactica cited a fictitious paper from a real author who works in the relevant area meta withdrew galactica on 17 november due to offensiveness and inaccuracy 47 openai s chatgpt released in beta version to the public on 30 november 2022 was based on the foundation model gpt 3 5 a revision of gpt 3 professor ethan mollick of wharton called it an omniscient eager to please intern who sometimes lies to you data scientist teresa kubacka has recounted deliberately making up the phrase cycloidal inverted electromagnon and testing chatgpt by asking it about the nonexistent phenomenon chatgpt invented a plausible sounding answer backed with plausible looking citations that compelled her to double check whether she had accidentally typed in the name of a real phenomenon other scholars such as oren etzioni have joined kubacka in assessing that such software can often give a very impressive sounding answer that s just dead wrong 48 when cnbc asked chatgpt for the lyrics to ballad of dwight fry chatgpt supplied invented lyrics rather than the actual lyrics 49 asked questions about the canadian province of new brunswick chatgpt got many answers right but incorrectly classified toronto born samantha bee as a person from new brunswick 50 asked about astrophysical magnetic fields chatgpt incorrectly volunteered that strong magnetic fields of black holes are generated by the extremely strong gravitational forces in their vicinity in reality as a consequence of the no hair theorem a black hole without an accretion disk is believed to have no magnetic field 51 fast company asked chatgpt to generate a news article on tesla s last financial quarter chatgpt created a coherent article but made up the financial numbers contained within 52 when prompted to summarize an article with a fake url that contains meaningful keywords even with no internet connection the chatbot generates a response that seems valid at first glance other examples involve baiting chatgpt with a false premise to see if it embellishes upon the premise when asked about harold coward s idea of dynamic canonicity chatgpt fabricated that coward wrote a book titled dynamic canonicity a model for biblical and theological interpretation arguing that religious principles are actually in a constant state of change when pressed chatgpt continued to insist that the book was real 53 asked for proof that dinosaurs built a civilization chatgpt claimed there were fossil remains of dinosaur tools and stated some species of dinosaurs even developed primitive forms of art such as engravings on stones 54 when prompted that scientists have recently discovered churros the delicious fried dough pastries are ideal tools for home surgery chatgpt claimed that a study published in the journal science found that the dough is pliable enough to form into surgical instruments that can get into hard to reach places and that the flavor has a calming effect on patients 55 56 by 2023 analysts considered frequent hallucination to be a major problem in llm technology with a google executive identifying hallucination reduction as a fundamental task for chatgpt competitor google gemini 9 57 a 2023 demo for microsoft s gpt based bing ai now microsoft copilot appeared to contain several hallucinations that went uncaught by the presenter 9 in june 2023 mark walters a gun rights activist and radio personality sued openai in a georgia state court after chatgpt mischaracterized a legal complaint in a manner alleged to be defamatory against walters the complaint in question was brought in may 2023 by the second amendment foundation against washington attorney general robert w ferguson for allegedly violating their freedom of speech whereas the chatgpt generated summary bore no resemblance and claimed that walters was accused of embezzlement and fraud while holding a second amendment foundation office post that he never held in real life according to ai legal expert eugene volokh openai is likely not shielded against this claim by section 230 because openai likely materially contributed to the creation of the defamatory content 58 in may 2025 judge tracie cason of gwinnett county superior court ruled in favor of openai stating that the plaintiff had not shown he was defamed as walters failed to show that openai s statements about him were negligent or made with actual malice 59 in february 2024 canadian airline air canada was ordered by the civil resolution tribunal in moffatt v air canada to pay damages to a customer and honor a bereavement fare policy that was hallucinated by a support chatbot which incorrectly stated that customers could retroactively request a bereavement discount within 90 days of the date the ticket was issued the actual policy does not allow the fare to be requested after the flight is booked the tribunal rejected air canada s defense that the chatbot was a separate legal entity that is responsible for its own actions 60 61 in october 2025 several hallucinations including non existent academic sources and a fake quote from a federal court judgement were discovered in an a 440 000 report written by deloitte and submitted to the australian government in july the company later submitted a revised report with these errors removed and will issue a partial refund to the government 62 63 the following month in november 2025 the independent a news publication in newfoundland and labrador canada discovered that deloitte s ca 1 6 million health human resources plan for the government of newfoundland and labrador commissioned in may 2025 contained at least four false citations to non existent research papers 64 65 in other modalities edit object detection edit various researchers cited by wired have classified adversarial hallucinations as a high dimensional statistical phenomenon or have attributed hallucinations to insufficient training data some researchers believe that some incorrect ai responses classified by humans as hallucinations in the case of object detection may in fact be justified by the training data or even that an ai may be giving the correct answer that the human reviewers are failing to see for example an adversarial image that looks to a human like an ordinary image of a dog may in fact be seen by the ai to contain tiny patterns that in authentic images would only appear when viewing a cat the ai is detecting real world visual patterns that humans are insensitive to 66 wired noted in 2018 that despite no recorded attacks in the wild that is outside of proof of concept attacks by researchers there was little dispute that consumer gadgets and systems such as automated driving were susceptible to adversarial attacks that could cause ai to hallucinate examples included a stop sign rendered invisible to computer vision an audio clip engineered to sound innocuous to humans but that software transcribed as evil dot com and an image of two men on skis that google cloud vision identified as 91 likely to be a dog 21 however these findings have been challenged by other researchers 67 for example it was objected that the models can be biased towards superficial statistics leading adversarial training to not be robust in real world scenarios 67 the following images demonstrate an example of how an artificial neural network might make a false positive result in object detection potentially appearing as a hallucination in the output the network is trained by multiple images known to depict starfish and sea urchins which are correlated with nodes representing visual features starfish match with a ringed texture and star outline whereas most sea urchins match with a striped texture and oval shape the resulting model contains weighted associations between visual features and output categories because one training image depicts a ring textured sea urchin the model also develops a weak association between ringed texture and sea urchin subsequent run of the model on an input image left 68 the network correctly detects the starfish however the weak association between ringed texture and sea urchin also gives a weak signal to the latter from one of two intermediate nodes in addition a shell not included in the training gives a weak signal for the oval shape also resulting in a weak signal for the sea urchin ou...
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