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Technology
18 March 2025

Study Reveals Alarming Accuracy Issues With AI Search Engines

Reliance on AI tools for information raises concerns over misinformation and citation errors.

AI search engines, including popular models developed by OpenAI and xAI, are experiencing troubling accuracy issues, especially as they become more prevalent among users seeking information. A recent study published by Columbia University's Tow Center for Digital Journalism raised alarms about the reliability of these AI models, particularly when they are used to answer queries about current events. Researchers Claudia Yazefski and Ayswarya Chandrasekar found disturbing trends indicating these AI systems often create fabricated stories and provide misleading citations.

The study revealed approximately 25% of Americans now use AI search engines instead of traditional searches, significantly changing how the public consumes information. While this shift may reflect growing trust and reliance on technological solutions, the risks associated with misinformation could adversely affect public opinion and decision-making processes.

To assess the accuracy of these tools, researchers evaluated eight AI search engines capable of real-time answers: ChatGPT Search, Perplexity, Perplexity Pro, DeepSeek Search, Gemini, Grok-2 Search, Grok-3 Search, and Copilot. Through 1,600 inquiries directly linked to verifiable news articles, the findings were alarming: over 60% of queries entangled with misidentifications of sources, with some models, such as Grok-3, yielding error rates as high as 94%.

Results indicated notable variances among the AI systems' performances; for example, Perplexity displayed a 37% error rate, whereas ChatGPT Search incurred 67%, underscoring the staggering level of inaccuracies within these advanced systems. This shows the real danger of misattributed or extrapolated information arising from these models.

Worryingly, the study also highlighted the models' tendency to present fabrications as factual responses rather than acknowledge the limits of their knowledge. This overconfidence creates serious risks when the information is simply incorrect. Notably, paid versions of these models appeared more prone to inaccuracies compared to their free counterparts; for example, the premium Perplexity Pro, which costs $20 monthly, often provided erroneous responses with unwarranted confidence.

Besides accuracy issues, researchers noted additional challenges. Some AI systems bypassed the Robot Exclusion Protocol, which prevents unauthorized access to publisher content. The free version of Perplexity managed to access ten snippets from National Geographic’s paywalled content, even though the publisher expressly prohibits AI web crawlers like Perplexity.

The study illuminated the overwhelming difficulty facing publishers today. With AI search engines redirecting users to re-published content across platforms rather than original publishers, many news outlets find themselves at risk of losing traffic and revenue. They face challenging decisions: blocking AI crawlers could lead to loss of citation, whereas allowing access facilitates widespread content misuse without driving traffic back to the original sources.

Mark Howerd, the Chief Operating Officer at Time magazine, voiced serious concerns about the potential erosive effects of AI search engines on information accuracy and news brands. Citing issues where platforms misrepresented news alerts, such as the case involving BBC News and Apple’s misleading news summaries, Howerd remarked on the implication this could have on brand trust and recognition.

Despite the troubling findings, Howerd expressed optimism about future improvements for these AI tools, noting significant investments are being made to refine the technology. He reminded users of their duty to validate information retrieved through AI systems, expressing: “If any consumer thinks now any of these free products will be 100% accurate, the fault lies with them.” Howerd stated the study's outcomes were unsurprising as large language models struggle to comprehend the true meaning of information, primarily relying on automatic completion systems.

Both OpenAI and Microsoft acknowledged the recent Columbia Journalism Review study results, yet neither firm extensively addressed specific issues highlighted by the researchers. OpenAI reaffirmed its commitment to boosting source citations through clearer links and appropriate citations to publishers, but concerns lingered over the efficacy of these reassurances. Microsoft did assert it would adhere strictly to the Robot Exclusion Protocol and collaborate with publishers to responsibly present information.

Overall, the transition toward AI-driven search engines marks both chance and concern, as improved access to information also brings about questions of accuracy and integrity. The challenges posed by this technology require vigilant efforts from both content creators and end-users. Trust in information is foundational to any democracy, and this situation demands not only innovative solutions from AI developers but also active responsibility from users.