--- title: "Answer Engines: What Perplexity and ChatGPT Do to Search" url: https://syntaxradar.com/radar/death-of-traditional-search-answer-engines-perplexity-chatgpt author: "Abdul Rehman, Lead Systems Architect and Technical Director" publishedAt: 2026-10-25T08:20:00.000Z dateModified: 2026-10-29T10:33:58.900Z category: "#FUTURE-COMPUTE" topic: "answer engines" primarySource: https://www.pewresearch.org/short-reads/2025/07/22/google-users-are-less-likely-to-click-on-links-when-an-ai-summary-appears-in-the-results/ summary: "Answer engines like Perplexity and ChatGPT search write one reply instead of ten links. See what Pew found about clicks and how accurate the replies are." --- # Answer Engines: What Perplexity and ChatGPT Do to Search **Short answer:** Pew Research found Google users clicked a regular result in 8% of visits with an AI summary, versus 15% without. A separate Tow Center test found AI search tools often misidentified sources. **Takeaway:** Answer engines save time on simple questions, but clicks fall when the answer sits on the page and the tools still misidentify sources often, so open the cited link before you rely on it. **Key figures (as reported by the source):** - Clicks with an AI summary (Pew): 8% of visits - Clicks without one (Pew): 15% of visits - Tool answers wrong (Tow Center): More than 60% Answer engines are changing what people do after they type a question into Google. An answer engine is a search tool that reads web pages for you and writes one short reply with numbered source links, instead of handing you a list of ten blue links. Perplexity, ChatGPT search and Google's own AI Mode all work this way. The best public measurement so far comes from Pew Research Center, and it shows a real shift in behaviour on Google itself. A separate test of AI search tools shows how often the cited sources are wrong. ### What Is an Answer Engine, and How Is It Different From a Search Engine? A classic search engine matches your words to pages and ranks them. You do the reading and the comparing. An answer engine adds a step: a language model (the kind of AI behind chatbots) reads the top results and writes a combined reply in plain sentences. [Perplexity's help centre](https://www.perplexity.ai/help-center/en/articles/10352895-how-does-perplexity-work) describes its process as interpreting your question, searching the web in real time and summarising what it finds. Each answer carries numbered citations that link to the original sources, and you can ask follow-up questions that build on the earlier ones. OpenAI launched ChatGPT search on October 31, 2024, starting with Plus and Team subscribers, according to [PPC Land's report on the launch](https://ppc.land/chatgpt-launches-web-search-with-news-partners-real-time-updates-now-available-2/). The article lists source attribution links as a feature and names Reuters, the Associated Press, the Financial Times, Le Monde, Axel Springer and Vox Media among its news partners. ### How Does Google's AI Mode Work? Google's version sits inside Google Search. In a [March 2025 announcement](https://blog.google/products/search/ai-mode-search/), Google described AI Mode as an opt-in experiment in Search Labs, running a custom version of its Gemini 2.0 model. Google says AI Mode uses a technique it calls query fan-out. The system runs several related searches at once across subtopics and data sources, then merges the results into a single response. Google says responses include links to web content, and that when it is not confident in an answer it falls back to standard search results. AI Overviews, the short summaries at the top of ordinary results, are a separate feature. Google's post says they are used by more than a billion people. ### Are Answer Engines Replacing Google? Pew's study looked at what happened when a Google results page included an AI summary. Pew followed the browsing of 900 U.S. adults during March 2025 and collected 68,879 unique Google searches, of which 12,593 produced an AI summary. People clicked a traditional result link in 8% of visits to pages with a summary, against 15% of visits to pages without one. Pew reports that the link inside the summary itself was clicked in 1% of visits. ![A person at a kitchen table typing a question into a laptop while a phone lies beside the keyboard](/uploads/blog/death-of-traditional-search-answer-engines-perplexity-chatgpt/gemini-supporting.jpg) Pew also found that the browsing session ended on 26% of pages with a summary, against 16% without one. The study covers Google only, and Pew notes that AI summaries change over time, so the figures reflect how they looked when the results were collected in April 2025. In plain numbers, 8% against 15% means visitors who saw a summary were close to half as likely to click an ordinary result, and 26% against 16% means they were more likely to end the session on that page. When the answer sits at the top of the page, fewer people click through, which is why the phrase "death of search" gets used. A person who gets the answer on the results page has less reason to visit the sites that supplied it, so the numbers matter to publishers as much as to readers. Pew did not measure traffic to other tools such as Perplexity or ChatGPT, so the study cannot show a total shift away from Google. ### Why Do AI Search Tools Cite Sources? Citations are the main reason these tools exist as a separate category. A chatbot that answers from memory cannot show where a claim came from. An answer engine fetches pages at the moment you ask, so it can point to them. Perplexity says its Deep Research mode runs dozens of searches and reads hundreds of sources, delivering a report in about 2 to 4 minutes, which is far more reading than most people would do by hand. That depth is the case for using an answer engine on a broad question, while the accuracy results below are the case for checking what it cites. Perplexity calls this source transparency. Pew's finding that summary links drew clicks in 1% of visits suggests most people read the reply and stop there. The links also matter to the sites being cited. Publishers that get a mention but no visit receive none of the traffic that pays for their reporting, which is one reason OpenAI announced news partnerships at launch. ### How Accurate Are AI Answer Engines? The Tow Center for Digital Journalism at Columbia Journalism Review tested eight generative search tools on 1,600 queries (20 publishers, 10 articles each, 8 tools). Each query asked the tool to identify an article from an excerpt, which is a narrow task, so the results do not describe every kind of question. Because each query had one correct article, every answer could be marked right or wrong, which is what lets the report put a percentage on each tool. Collectively, according to the [Tow Center results](https://www.cjr.org/tow_center/we-compared-eight-ai-search-engines-theyre-all-bad-at-citing-news.php), the tools answered more than 60% of queries incorrectly. Perplexity was wrong on 37%, the best of the group, while Grok 3 was wrong on 94%. ![A researcher at a desk comparing a printed newspaper article against text on a laptop screen](/uploads/blog/death-of-traditional-search-answer-engines-perplexity-chatgpt/gemini-supporting.jpg) According to the report, ChatGPT misidentified 134 of its 200 articles, signalled low confidence only 15 times, and never declined to answer. Grok 3 linked to error pages for 154 of its 200 citations. The report also found that having a licensing deal did not guarantee correct credit: the San Francisco Chronicle has a partnership with OpenAI, yet ChatGPT identified only 1 of 10 of its excerpts correctly. The test is from early 2025, and the tools have changed since. ### When Should You Use an Answer Engine Instead of Google? These tools work well for orientation: a quick explanation, a comparison of options, or a first read on an unfamiliar topic where a wrong detail costs little. Follow-up questions are the real advantage, because you can narrow a topic without starting over. Traditional results suit anything where the exact page matters: official forms, prices, medical or legal details, or a claim you plan to repeat. For those, open the cited page and read it. If you want to see where this is heading next, our piece on [AI agents that click and type like a person](/radar/computer-use-ai-agents-operating-systems-claude-operator) covers the step after answers: tools that complete the task for you. ### What to Watch Next Click-through data comes first. Pew's 8% against 15% is one snapshot from one month in 2025, and it covers only Google. A repeat study would show whether the gap has widened or narrowed as AI summaries appear on more searches. Publisher deals are next. Whether answer engines pay for the pages they summarise will shape how much reliable material stays on the open web. A fresh accuracy comparison on current versions would also tell readers more than any launch announcement, since the Tow Center test showed wide gaps between tools. ## Frequently asked questions ### What is an answer engine? An answer engine is a search tool that reads web pages for you and writes one combined reply with numbered source links. Perplexity, ChatGPT search and Google AI Mode work this way. You can ask follow-up questions, and you open the cited pages when you want to check a claim or read the original. ### Do AI summaries reduce clicks on Google? Pew Research Center found that people clicked a traditional result in 8% of visits to pages with an AI summary, against 15% of visits without one. The study followed 900 U.S. adults in March 2025 and covers Google only. Links inside the summary itself were clicked in 1% of visits. ### Are AI answer engines accurate? Not reliably. A Tow Center test of eight AI search tools on 1,600 queries found they answered more than 60% incorrectly when asked to identify news articles from excerpts. Perplexity was wrong on 37%, Grok 3 on 94%. The test is from early 2025 and narrow, so check the cited source. ### Is Google AI Mode the same as AI Overviews? No. AI Overviews are short summaries shown at the top of normal Google results. AI Mode, announced in March 2025 as an opt-in Labs experiment, is a separate conversational search experience that runs several related searches at once and combines them into one response with links to web content, according to Google. ## Source Based on Pew Research Center and Tow Center studies. https://www.pewresearch.org/short-reads/2025/07/22/google-users-are-less-likely-to-click-on-links-when-an-ai-summary-appears-in-the-results/ --- Published on SyntaxRadar (https://syntaxradar.com). Canonical URL: https://syntaxradar.com/radar/death-of-traditional-search-answer-engines-perplexity-chatgpt. Last modified 2026-10-29T10:33:58.900Z.