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Perplexity AI

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</style><div role="note" class="hatnote navigation-not-searchable">This article is about the artificial intelligence search engine. For the namesake measure of uncertainty in information theory, see <a href="Perplexity" title="Perplexity">Perplexity</a>.</div>

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</style><table class="infobox ib-company vcard"><caption class="infobox-title fn org" style="font-size: 125%;">Perplexity AI, Inc.</caption><tbody><tr><td colspan="2" class="infobox-image ib-company-logo logo"></td></tr><tr><th scope="row" class="infobox-label">Company type</th><td class="infobox-data category">Private</td></tr><tr><th scope="row" class="infobox-label">Industry</th><td class="infobox-data category"><a href="Artificial_intelligence" title="Artificial intelligence">Artificial intelligence</a>, <a href="Search_engine" title="Search engine">Search engine</a></td></tr><tr><th scope="row" class="infobox-label">Founded</th><td class="infobox-data">2022<a href="#cite_note-founding-1">[1]</a></td></tr><tr><th scope="row" class="infobox-label">Founders</th><td class="infobox-data agent"><a href="Aravind_Srinivas" title="Aravind Srinivas">Aravind Srinivas</a>, <a href="Denis_Yarats" title="Denis Yarats">Denis Yarats</a>, Johnny Ho, <a href="Andy_Konwinski" title="Andy Konwinski">Andy Konwinski</a><a href="#cite_note-founding-1">[1]</a></td></tr><tr><th scope="row" class="infobox-label">Headquarters</th><td class="infobox-data label">San Francisco, California, U.S.<a href="#cite_note-forbes_hq-2">[2]</a></td></tr><tr><th scope="row" class="infobox-label"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">Area served</div></th><td class="infobox-data">Worldwide</td></tr><tr><th scope="row" class="infobox-label">Products</th><td class="infobox-data">Perplexity search engine, Pro subscription, Perplexity Assistant, Perplexity Comet browser<a href="#cite_note-product_line-3">[3]</a></td></tr><tr><th scope="row" class="infobox-label"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">Number of employees</div></th><td class="infobox-data">52 (2024) </td></tr><tr><th scope="row" class="infobox-label">Website</th><td class="infobox-data"><a rel="nofollow" class="external text" href="https://www.perplexity.ai">www.perplexity.ai</a></td></tr></tbody></table>

Perplexity AI, or simply Perplexity, is a <a href="Privately_held_company" title="Privately held company">privately held</a> <a href="San_Francisco" title="San Francisco">San Francisco</a>-based <a href="Software_company" title="Software company">software company</a> offering a web <a href="Search_engine" title="Search engine">search engine</a> that <a href="Natural_language_processing" title="Natural language processing">processes</a> user queries and synthesizes responses.<a href="#cite_note-euronews-4">[4]</a> It uses <a href="Large_language_model" title="Large language model">large language models</a> and incorporates real-time web search capabilities, enabling it to provide responses based on current <a href="Internet" title="Internet">Internet</a> content. With a conversational approach, Perplexity allows users to ask follow-up questions and receive contextual answers. All responses include citations to their sources from the <a href="Internet" title="Internet">Internet</a> to support transparency and allow users to verify information.<a href="#cite_note-techcrunch-5">[5]</a> A free public version is available, while a paid Pro subscription offers access to more advanced language models and additional features.<a href="#cite_note-golden-6">[6]</a>

Perplexity AI, Inc. was founded in 2022<a href="#cite_note-7">[7]</a> by <a href="Aravind_Srinivas" title="Aravind Srinivas">Aravind Srinivas</a>, <a href="Denis_Yarats" title="Denis Yarats">Denis Yarats</a>, Johnny Ho, and <a href="Andy_Konwinski" title="Andy Konwinski">Andy Konwinski</a>. As of July 2025, the company was valued at US$18 billion.<a href="#cite_note-8">[8]</a>

Perplexity AI has attracted legal scrutiny over allegations of <a href="Copyright_infringement" title="Copyright infringement">copyright infringement</a>, unauthorized content use, and <a href="Trademark" title="Trademark">trademark</a> issues from several major media organizations, including the <a href="BBC" title="BBC">BBC</a>, <a href="Dow_Jones" title="Dow Jones">Dow Jones</a>, and <a href="The_New_York_Times" title="The New York Times">The New York Times</a>.<a href="#cite_note-9">[9]</a><a href="#cite_note-10">[10]</a>

<div class="mw-heading mw-heading2"><h2 id="History">History</h2></div>

In August 2022, Perplexity AI, Inc. was founded by <a href="Aravind_Srinivas" title="Aravind Srinivas">Aravind Srinivas</a>, <a href="Denis_Yarats" title="Denis Yarats">Denis Yarats</a>, Johnny Ho, and <a href="Andy_Konwinski" title="Andy Konwinski">Andy Konwinski</a>, engineers with backgrounds in back-end systems, <a href="Artificial_intelligence" title="Artificial intelligence">artificial intelligence</a> (AI) and <a href="Machine_learning" title="Machine learning">machine learning</a>.<a href="#cite_note-11">[11]</a> It launched its main search engine on December 7, 2022, and has since released a <a href="Google_Chrome" title="Google Chrome">Google Chrome</a> extension and an <a href="Mobile_app" title="Mobile app">app</a> for <a href="IOS" title="IOS">iOS</a> and <a href="Android_(operating_system)" title="Android (operating system)">Android</a>.<a href="#cite_note-golden-6">[6]</a><a href="#cite_note-techcrunch-5">[5]</a><a href="#cite_note-techcrunch_2-12">[12]</a> In February 2023, Perplexity reported two million unique visitors.<a href="#cite_note-techcrunch-5">[5]</a> By April 2024, Perplexity had raised $165 million in <a href="Funding" title="Funding">funding</a>, valuing the company at over $1 billion.<a href="#cite_note-:1-13">[13]</a> As of June 2025, Perplexity closed a $500 million round of funding that elevated its valuation to $14 billion.<a href="#cite_note-:4-14">[14]</a> Investors in Perplexity AI have included <a href="Jeff_Bezos" title="Jeff Bezos">Jeff Bezos</a>, <a href="Tobias_L%C3%BCtke" title="Tobias Lütke">Tobias Lütke</a>, <a href="Nat_Friedman" title="Nat Friedman">Nat Friedman</a>, <a href="Nvidia" title="Nvidia">Nvidia</a>, and <a href="Databricks" title="Databricks">Databricks</a>.<a href="#cite_note-wiggers-15">[15]</a><a href="#cite_note-:3-16">[16]</a><a href="#cite_note-:1-13">[13]</a> During Bloomberg’s Tech Summit 2025, Srinivas shared that the company processed 780 million queries in May 2025, experiencing more than 20% month-over-month growth, processing around 30 million queries daily.<a href="#cite_note-17">[17]</a>

In July 2024, Perplexity announced the launch of a new publishers' program to share <a href="Advertising_revenue" title="Advertising revenue">ad revenue</a> with partners.<a href="#cite_note-18">[18]</a>

On January 18, 2025, the day before the <a href="Restrictions_on_TikTok_in_the_United_States" title="Restrictions on TikTok in the United States">impending U.S. ban</a> on Chinese social media app <a href="TikTok" title="TikTok">TikTok</a>, Perplexity submitted a proposal for a merger with TikTok US.<a href="#cite_note-19">[19]</a><a href="#cite_note-20">[20]</a><a href="#cite_note-21">[21]</a><a href="#cite_note-22">[22]</a>

<div class="mw-heading mw-heading2"><h2 id="Products_and_services">Products and services</h2></div>

<table class="infobox vevent"><tbody><tr><th colspan="2" class="infobox-above summary">Perplexity AI</th></tr><tr><td colspan="2" class="infobox-image logo"></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Programmer" title="Programmer">Developer(s)</a></th><td class="infobox-data"><style data-mw-deduplicate="TemplateStyles:r1126788409">

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<ul><li><a href="Aravind_Srinivas" title="Aravind Srinivas">Aravind Srinivas</a></li>

<li><a href="Denis_Yarats" title="Denis Yarats">Denis Yarats</a></li>

<li>Johnny Ho</li>

<li><a href="Andy_Konwinski" title="Andy Konwinski">Andy Konwinski</a><a href="#cite_note-golden-6">[6]</a></li></ul>

</div></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Initial release</th><td class="infobox-data">December 7, 2022 (2022-12-07)</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Software_engine" title="Software engine">Engine</a></th><td class="infobox-data"><div class="plainlist">

<li><a href="Claude_(language_model)" title="Claude (language model)">Claude</a></li>

<li><a href="Gemini_(language_model)" title="Gemini (language model)">Gemini</a></li>

<li>Sonar</li></ul>

</div></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Software_categories#Categorization_approaches" title="Software categories">Type</a></th><td class="infobox-data"><div class="plainlist">

<ul><li><a href="Search_engine" title="Search engine">Search engine</a></li>

<li><a href="Large_language_model" title="Large language model">Large language model</a></li>

<li><a href="Generative_pre-trained_transformer" title="Generative pre-trained transformer">Generative pre-trained transformer</a><a href="#cite_note-golden-6">[6]</a></li></ul>

</div></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Website</th><td class="infobox-data"><a rel="nofollow" class="external text" href="https://www.perplexity.ai/">perplexity.ai</a></td></tr></tbody></table>

Perplexity products perform web search, summarize the search results, and produce text with inline citations<a href="#cite_note-wiggers-15">[15]</a>. They also enable users to generate customizable web pages and research presentations based on user prompts.<a href="#cite_note-23">[23]</a> Perplexity services bundle access to multiple products. Perplexity adopted a <a href="Freemium" title="Freemium">freemium</a> model for individual users, while a paid enterprise service is also available.<a href="#cite_note-:1-13">[13]</a>

<div class="mw-heading mw-heading3"><h3 id="Subscription_service_(Pro)">Subscription service (Pro)</h3></div>

Perplexity Pro, the premium subscription tier of Perplexity AI, provides access to an <a href="API" title="API">API</a><a href="#cite_note-wiggers-15">[15]</a> and also enables users to search both internal files and web content. It allows the user to select between backend models such as <a href="GPT-4.1" title="GPT-4.1">GPT-4.1</a>, <a href="OpenAI_o4-mini" title="OpenAI o4-mini">o4-mini</a>, <a href="Claude_(language_model)#Claude_4" title="Claude (language model)">Claude 4.0</a>, <a href="Grok_(chatbot)#Grok-4" title="Grok (chatbot)">Grok 4</a> and <a href="Gemini_(language_model)" title="Gemini (language model)">Gemini Pro 2.5</a>.<a href="#cite_note-:0-24">[24]</a> The company has also developed its own models Sonar (based on Llama 3.3)<a href="#cite_note-25">[25]</a> and R1 1776 (based on DeepSeek R1).<a href="#cite_note-26">[26]</a>

As of 2025, the Pro version is available for free for one year

<ul><li>to <a href="Samsung_Galaxy" title="Samsung Galaxy">Samsung Galaxy</a> phone and tablet owners in the United States; eligible users simply need to download the Perplexity app from the <a href="Galaxy_Store" title="Galaxy Store">Galaxy Store</a> and sign in, after which their account is automatically upgraded to Pro at no cost.<a href="#cite_note-SamsungFreeYear-27">[27]</a></li>

<li>to <a href="Bharti_Airtel" title="Bharti Airtel">Airtel</a> users.<a href="#cite_note-28">[28]</a><a href="#cite_note-29">[29]</a></li></ul>

<div class="mw-heading mw-heading3"><h3 id="Internal_Knowledge_Search">Internal Knowledge Search</h3></div>

Internal Knowledge Search enables Pro and Enterprise Pro users to simultaneously search across web content and internal documents. Users can upload and search through Excel, Word, PDF, and other common file formats. Enterprise Pro users have a limit of 500 files for upload and indexing.<a href="#cite_note-30">[30]</a>

<div class="mw-heading mw-heading3"><h3 id="Shopping_hub">Shopping hub</h3></div>

Perplexity's Shopping Hub launched in November 2024 with backing by <a href="Amazon_(company)" title="Amazon (company)">Amazon</a> and <a href="Nvidia" title="Nvidia">Nvidia</a>.<a href="#cite_note-31">[31]</a>

It is an AI-powered online shopping platform that enables users to search, discover, and purchase products directly through Perplexity’s interface. Key features include a one-click checkout for Perplexity Pro members in the U.S., a visual product search with Snap to Shop, and unbiased, AI-generated product recommendations. The hub leverages Shopify for real-time product data, offers merchants the ability to showcase inventory, and aims to make the online shopping experience faster and more convenient for users.<a href="#cite_note-32">[32]</a><a href="#cite_note-33">[33]</a><a href="#cite_note-34">[34]</a><a href="#cite_note-35">[35]</a>

<div class="mw-heading mw-heading3"><h3 id="Finance">Finance</h3></div>

In October 2024, Perplexity AI introduced new finance-related features, including looking up stock prices and company earnings data. The tool provides real-time stock quotes and price tracking, industry peer comparisons and basic financial analysis tools. The platform sources its financial data from Financial Modeling Prep (FMP) to ensure accuracy.<a href="#cite_note-:6-36">[36]</a><a href="#cite_note-37">[37]</a>

<div class="mw-heading mw-heading3"><h3 id="Assistant">Assistant</h3></div>

In January 2025, Perplexity launched the Perplexity Assistant, an AI-powered tool designed to enhance the functionality of its search engine. Since April of 2025, the assistant is available on Android and iOS devices<a href="#cite_note-38">[38]</a>, and is integrated into the Perplexity app. It can perform tasks across multiple apps, such as hailing a ride or searching for a song, and is capable of maintaining context across actions, allowing for more seamless task management.<a href="#cite_note-techcrunch_2-12">[12]</a> This enables event reminders, including finding the right date and time and creating corresponding calendar entries. The assistant is also multi-modal, meaning it can use a phone's camera to provide answers about the user's surroundings or on-screen content.<a href="#cite_note-techcrunch_2-12">[12]</a>

Initially, the Perplexity Assistant is free in 15 languages, including English, Spanish, French, German, Japanese, Polish, Korean, and Hindi. Perplexity has acknowledged that the assistant is still in development and may not always function as expected. For instance, certain features, such as summarizing unread emails or upcoming calendar events, require users to enable a workaround based on notifications.<a href="#cite_note-techcrunch_2-12">[12]</a>

<div class="mw-heading mw-heading3"><h3 id="Comet">Comet</h3></div>

In July 2025, Perplexity launched Comet, an <a href="AI_browser" title="AI browser">AI browser</a> based on <a href="Chromium_(web_browser)" title="Chromium (web browser)">Chromium</a>. Initially, access to the browser is limited to users subscribed to the highest, most expensive subscription tier, with broader availability expected over time.<a href="#cite_note-39">[39]</a> A key feature of the browser is the integration of the Perplexity search engine,<a href="#cite_note-40">[40]</a> which enables users to perform a variety of tasks such as generating article summaries, describing an image, conducting research about a topic and composing emails.<a href="#cite_note-41">[41]</a>

<div class="mw-heading mw-heading2"><h2 id="Controversies">Controversies</h2></div>

<div class="mw-heading mw-heading3"><h3 id="Copyright_and_trademark_infringement_allegations">Copyright and trademark infringement allegations</h3></div>

In June 2024, <a href="Forbes" title="Forbes">Forbes</a> publicly criticized Perplexity for using their content. According to Forbes, Perplexity published a story largely copied from a proprietary Forbes article without mentioning or prominently citing Forbes. In response, Srinivas said that the feature had some "rough edges" and accepted feedback but maintained that Perplexity only "aggregates" rather than plagiarizes information.<a href="#cite_note-APForbes-42">[42]</a><a href="#cite_note-43">[43]</a> In October 2024, <a href="The_New_York_Times" title="The New York Times">The New York Times</a> sent a <a href="Cease_and_desist" title="Cease and desist">cease-and-desist</a> notice to Perplexity to stop accessing and using NYT content, claiming that Perplexity is violating its copyright by <a href="Web_scraping" title="Web scraping">scraping</a> data from its website.<a href="#cite_note-Davis-44">[44]</a> In June 2024, <a href="Dow_Jones" title="Dow Jones">Dow Jones</a> and <a href="New_York_Post" title="New York Post">New York Post</a> filed a lawsuit against Perplexity, alleging copyright infringement. The lawsuit also alleges that Perplexity attributed quotes to an article on F-16 jets for Ukraine that never appeared in the original article.<a href="#cite_note-45">[45]</a> Perplexity released a blog post to address the lawsuits on October 24, 2024. It stated that the complaints are misleading and reiterated that it was open to revenue-sharing programs.<a href="#cite_note-46">[46]</a> On January 31, 2025, Perplexity was sued in the United States for alleged trademark infringement by Perplexity Solved Solutions (PSS), a software firm founded in 2017.<a href="#cite_note-47">[47]</a> The lawsuit claims that Perplexity AI's use of the name "Perplexity" violates PSS's federally registered trademark and could cause consumer confusion. PSS had previously declined an offer from Perplexity AI to purchase the trademark in 2023. The suit seeks to prevent Perplexity AI from using the name in its branding and marketing.<a href="#cite_note-48">[48]</a> In June 2025, the <a href="BBC" title="BBC">BBC</a> threatened legal action against Perplexity AI, demanding that the company stop the unauthorized scraping of its content, delete all retained BBC material used in training its models, and provide financial compensation for the infringement of its intellectual property rights.<a href="#cite_note-49">[49]</a>

<div class="mw-heading mw-heading3"><h3 id="Stealth_web_crawlers">Stealth web crawlers</h3></div>

In June 2024, separate investigations by the magazine <a href="Wired_(magazine)" title="Wired (magazine)">Wired</a> and web developer Robb Knight found that Perplexity does not respect the Robot Exclusion Protocol (or <a href="Robots.txt" title="Robots.txt">robots.txt</a>) standard, which may include requests for <a href="Web_crawler" title="Web crawler">web crawlers</a> to not scrape sections of the site's content, despite Perplexity claiming the opposite. Perplexity also lists the <a href="IP_address" title="IP address">IP address</a> ranges and <a href="User_agent_string" class="mw-redirect" title="User agent string">user agent strings</a> of their web crawlers publicly, but according to Wired and Robb Knight, they use undisclosed IP addresses and spoofed user agent strings when ignoring robots.txt.<a href="#cite_note-:2-50">[50]</a><a href="#cite_note-51">[51]</a> In response, Srinivas stated that Perplexity is not ignoring robots.txt, but suggested it relied on third-party web crawlers that do.<a href="#cite_note-:5-52">[52]</a> When asked, Srinivas declined to say that Perplexity would cease scraping Wired content using third parties.<a href="#cite_note-:5-52">[52]</a>

In August 2025, <a href="Cloudflare" title="Cloudflare">Cloudflare</a> published research finding that Perplexity was using undeclared "stealth" web crawlers to bypass Web application firewalls and robots.txt files intended to block Perplexity crawlers.<a href="#cite_note-53">[53]</a><a href="#cite_note-54">[54]</a> Cloudflare's CEO <a href="Matthew_Prince" title="Matthew Prince">Matthew Prince</a> tweeted that Perplexity acts "more like North Korean hackers" than like a reputable AI company.<a href="#cite_note-55">[55]</a> Perplexity publicly denied the claims, calling it a "charlatan publicity stunt".<a href="#cite_note-56">[56]</a>

<ul><li><a href="ChatGPT" title="ChatGPT">ChatGPT</a></li>

<li><a href="Claude_(language_model)" title="Claude (language model)">Claude (language model)</a></li>

<li><a href="Grok_(chatbot)" title="Grok (chatbot)">Grok (chatbot)</a></li>

<li><a href="Large_language_model" title="Large language model">Large language model</a></li></ul>

<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>

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<li id="cite_note-43"><a href="#cite_ref-43">^</a> <cite id="CITEREFLane2024" class="citation news cs1">Lane, Randall (June 11, 2024). <a rel="nofollow" class="external text" href="https://www.forbes.com/sites/randalllane/2024/06/11/why-perplexitys-cynical-theft-represents-everything-that-could-go-wrong-with-ai/">"Why Perplexity's Cynical Theft Represents Everything That Could Go Wrong With AI"</a>. <a href="Forbes" title="Forbes">Forbes</a>. Retrieved June 20, 2024.</cite>

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<li id="cite_note-Davis-44"><a href="#cite_ref-Davis_44-0">^</a> <cite id="CITEREFDavis2024" class="citation web cs1">Davis, Wes (October 15, 2024). <a rel="nofollow" class="external text" href="https://www.theverge.com/2024/10/15/24270774/new-york-times-cease-and-desist-letter-perplexity-ai-search-engine">"The New York Times warns AI search engine Perplexity to stop using its content"</a>. The Verge. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20241112204218/https://www.theverge.com/2024/10/15/24270774/new-york-times-cease-and-desist-letter-perplexity-ai-search-engine">Archived</a> from the original on November 12, 2024. Retrieved October 17, 2024.</cite>

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<li id="cite_note-45"><a href="#cite_ref-45">^</a> <cite id="CITEREFBruell" class="citation web cs1">Bruell, Alexandra. <a rel="nofollow" class="external text" href="https://www.wsj.com/business/media/wall-street-journal-new-york-post-sue-perplexity-ai-c5d9554d">"Wall Street Journal, New York Post Sue AI Startup Perplexity, Alleging 'Massive Freeriding'"</a>. WSJ. Retrieved June 7, 2025.</cite>

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<li id="cite_note-46"><a href="#cite_ref-46">^</a> <cite id="CITEREFSpangler2024" class="citation web cs1">Spangler, Todd (October 25, 2024). <a rel="nofollow" class="external text" href="https://variety.com/2024/digital/news/perplexity-ai-responds-lawsuit-news-corp-dow-jones-1236190651/">"AI Startup Perplexity Fires Back After News Corp's Dow Jones Sues: 'Adversarial' Media Companies 'Wish This Technology Didn't Exist'"</a>. Variety. Retrieved June 7, 2025.</cite>

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<li id="cite_note-47"><a href="#cite_ref-47">^</a> <cite id="CITEREFWiggers2025" class="citation web cs1">Wiggers, Kyle (January 31, 2025). <a rel="nofollow" class="external text" href="https://techcrunch.com/2025/01/31/ai-startup-perplexity-sued-for-alleged-trademark-infringement/">"AI startup Perplexity sued for alleged trademark infringement"</a>. TechCrunch. Retrieved February 1, 2025.</cite>

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<li id="cite_note-48"><a href="#cite_ref-48">^</a> <cite id="CITEREFBrittain2025" class="citation web cs1">Brittain, Blake (January 31, 2025). <a rel="nofollow" class="external text" href="https://www.reuters.com/legal/litigation/perplexity-ai-sued-by-software-company-trademark-infringement-2025-01-31/">"Perplexity AI sued by software company for trademark infringement"</a>. Reuters. Retrieved March 10, 2025.</cite>

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<li id="cite_note-49"><a href="#cite_ref-49">^</a> <cite id="CITEREFThomasCriddle2025" class="citation news cs1">Thomas, Daniel; Criddle, Cristina (June 20, 2025). <a rel="nofollow" class="external text" href="https://www.ft.com/content/b743d401-dc5d-44b8-9987-825a4ffcf4ca">"BBC threatens legal action against AI start-up Perplexity over content scraping"</a>. Financial Times. Retrieved June 20, 2025.</cite>

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<li id="cite_note-51"><a href="#cite_ref-51">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://rknight.me/blog/perplexity-ai-is-lying-about-its-user-agent/">"Perplexity AI is Lying about their User-Agent"</a>. Robb Knight. June 15, 2024. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20240620100509/https://rknight.me/blog/perplexity-ai-is-lying-about-its-user-agent/">Archived</a> from the original on June 20, 2024. Retrieved June 20, 2024.</cite>

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<li id="cite_note-:5-52">^ <a href="#cite_ref-:5_52-0">a</a> <a href="#cite_ref-:5_52-1">b</a> <cite id="CITEREFSullivan2024" class="citation news cs1">Sullivan, Mark (June 21, 2024). <a rel="nofollow" class="external text" href="https://www.fastcompany.com/91144894/perplexity-ai-ceo-aravind-srinivas-on-plagiarism-accusations">"Perplexity CEO Aravind Srinivas responds to plagiarism and infringement accusations"</a>. <a href="Fast_Company" title="Fast Company">Fast Company</a>. Retrieved June 24, 2024.</cite>

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<li id="cite_note-53"><a href="#cite_ref-53">^</a> <cite id="CITEREFFranceschi-Bicchierai2025" class="citation web cs1">Franceschi-Bicchierai, Lorenzo (August 4, 2025). <a rel="nofollow" class="external text" href="https://techcrunch.com/2025/08/04/perplexity-accused-of-scraping-websites-that-explicitly-blocked-ai-scraping/">"Perplexity accused of scraping websites that explicitly blocked AI scraping"</a>. TechCrunch. Retrieved August 5, 2025.</cite>

</li>

<li id="cite_note-54"><a href="#cite_ref-54">^</a> <cite id="CITEREFGoodin2025" class="citation web cs1">Goodin, Dan (August 4, 2025). <a rel="nofollow" class="external text" href="https://arstechnica.com/information-technology/2025/08/ai-site-perplexity-uses-stealth-tactics-to-flout-no-crawl-edicts-cloudflare-says/">"AI site Perplexity uses "stealth tactics" to flout no-crawl edicts, Cloudflare says"</a>. Ars Technica. Retrieved August 5, 2025.</cite>

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<li id="cite_note-55"><a href="#cite_ref-55">^</a> <cite id="CITEREFKan2025" class="citation web cs1">Kan, Michael (August 4, 2025). <a rel="nofollow" class="external text" href="https://www.pcmag.com/news/cloudflare-perplexity-ai-acts-like-north-korean-hackers-ignores-scraping">"Cloudflare: Perplexity AI Acts Like North Korean Hackers, Ignores Scraping Blocks"</a>. PCMAG. Retrieved August 5, 2025.</cite>

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<li id="cite_note-56"><a href="#cite_ref-56">^</a> <cite id="CITEREFRoth2025" class="citation web cs1">Roth, Emma (August 4, 2025). <a rel="nofollow" class="external text" href="https://www.theverge.com/news/718319/perplexity-stealth-crawling-cloudflare-ai-bots-report">"Cloudflare says Perplexity's AI bots are 'stealth crawling' blocked sites"</a>. The Verge. Retrieved August 8, 2025.</cite>

</li>

</ol></div></div>

<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>

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<div class="side-box-text plainlist">Wikiversity has learning resources about <a href="https://en.wikiversity.org/wiki/Search_Engines" class="extiw external" title="v:Search Engines">Search Engines</a></div></div>

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<ul><li><a rel="nofollow" class="external text" href="https://www.perplexity.ai/">Official website</a> </li></ul>

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</style><div id="Web_search_engines153" style="font-size:114%;margin:0 4em"><a href="Search_engine" title="Search engine">Web search engines</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Active</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks hlist navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;text-align:center;">Dedicated</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<li><a href="Ahmia" title="Ahmia">Ahmia</a></li>

<li><a href="Baidu" title="Baidu">Baidu</a></li>

<li><a href="Blackle" title="Blackle">Blackle</a></li>

<li><a href="Brave_Search" title="Brave Search">Brave</a></li>

<li><a href="DuckDuckGo" title="DuckDuckGo">DuckDuckGo</a></li>

<li><a href="Ecosia" title="Ecosia">Ecosia</a></li>

<li><a href="Fireball_(search_engine)" title="Fireball (search engine)">Fireball</a></li>

<li><a href="Google_Search" title="Google Search">Google</a></li>

<li><a href="Kiddle_(search_engine)" title="Kiddle (search engine)">Kiddle</a></li>

<li><a href="KidRex" title="KidRex">KidRex</a></li>

<li><a href="KidzSearch" class="mw-redirect" title="KidzSearch">KidzSearch</a></li>

<li><a href="Lycos" title="Lycos">Lycos</a></li>

<li><a href="Mojeek" title="Mojeek">Mojeek</a></li>

<li><a href="Naver" title="Naver">Naver</a></li>

<li><a href="Parsijoo" title="Parsijoo">Parsijoo</a></li>

<li><a href="Petal_Search" title="Petal Search">Petal</a></li>

<li><a href="Presearch_(search_engine)" title="Presearch (search engine)">Presearch</a></li>

<li><a href="Seznam.cz" title="Seznam.cz">Seznam.cz</a></li>

<li><a href="Sogou" title="Sogou">Sogou</a></li>

<li><a href="Swisscows" title="Swisscows">Swisscows</a></li>

<li><a href="WebCrawler" title="WebCrawler">WebCrawler</a></li>

<li><a href="Yahoo_Search" title="Yahoo Search">Yahoo!</a></li>

<li><a href="Yandex_Search" title="Yandex Search">Yandex</a></li>

<li><a href="Youdao" title="Youdao">Youdao</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:center;"><a href="Metasearch_engine" title="Metasearch engine">Metasearch engines</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Dogpile" title="Dogpile">Dogpile</a></li>

<li><a href="Excite_(web_portal)" title="Excite (web portal)">Excite</a></li>

<li><a href="MetaCrawler" title="MetaCrawler">MetaCrawler</a></li>

<li><a href="MetaGer" title="MetaGer">MetaGer</a></li>

<li><a href="Mullvad_Leta" class="mw-redirect" title="Mullvad Leta">Mullvad Leta</a></li>

<li><a href="SearXNG" title="SearXNG">SearXNG</a></li>

<li><a href="Startpage.com" class="mw-redirect" title="Startpage.com">Startpage</a></li>

<li><a href="Qwant" title="Qwant">Qwant</a></li></ul>

</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Defunct or Inactive</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="123people" title="123people">123people</a></li>

<li><a href="Aliweb" class="mw-redirect" title="Aliweb">Aliweb</a></li>

<li><a href="AlltheWeb" title="AlltheWeb">AlltheWeb</a></li>

<li><a href="AltaVista" title="AltaVista">AltaVista</a></li>

<li><a href="Blekko" title="Blekko">Blekko</a></li>

<li><a href="Boogami" title="Boogami">Boogami</a></li>

<li><a href="Empas" title="Empas">Empas</a></li>

<li><a href="Forestle" title="Forestle">Forestle</a></li>

<li><a href="GenieKnows" title="GenieKnows">GenieKnows</a></li>

<li><a href="Gigablast" title="Gigablast">Gigablast</a></li>

<li><a href="HotBot" title="HotBot">HotBot</a></li>

<li><a href="Infoseek" title="Infoseek">Infoseek</a></li>

<li><a href="Inktomi" title="Inktomi">Inktomi</a></li>

<li><a href="JumpStation" title="JumpStation">JumpStation</a></li>

<li><a href="LeapFish" title="LeapFish">LeapFish</a></li>

<li><a href="Neeva" title="Neeva">Neeva</a></li>

<li><a href="Northern_Light_Group" title="Northern Light Group">Northern Light</a></li>

<li><a href="Pipilika" title="Pipilika">Pipilika</a></li>

<li><a href="Powerset_(company)" title="Powerset (company)">Powerset</a></li>

<li><a href="Scroogle" class="mw-redirect" title="Scroogle">Scroogle</a></li>

<li><a href="SearchMe" title="SearchMe">SearchMe</a></li>

<li><a href="Searx" title="Searx">Searx</a></li>

<li><a href="Sputnik_(search_engine)" title="Sputnik (search engine)">Sputnik</a></li>

<li><a href="Teoma" title="Teoma">Teoma</a></li>

<li><a href="Viewzi" title="Viewzi">Viewzi</a></li>

<li><a href="Vivisimo" title="Vivisimo">Vivisimo</a></li>

<li><a href="Volunia" title="Volunia">Volunia</a></li>

<li><a href="W3Catalog" title="W3Catalog">W3Catalog</a></li>

<li><a href="Wikiseek" title="Wikiseek">Wikiseek</a></li>

<li><a href="Yebol" title="Yebol">Yebol</a></li>

<li><a href="Yippy" title="Yippy">Yippy</a></li>

</div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div>

<ul><li><a href="Comparison_of_search_engines" title="Comparison of search engines">Comparison</a></li>

<li><a href="List_of_search_engines" title="List of search engines">Complete list</a></li></ul>

</div></td></tr></tbody></table></div>

<div class="navbox-styles"></div><div role="navigation" class="navbox" aria-labelledby="Generative_AI_chatbots226" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Generative_AI_chatbots226" style="font-size:114%;margin:0 4em"><a href="Generative_AI" class="mw-redirect" title="Generative AI">Generative AI</a> <a href="Chatbot" title="Chatbot">chatbots</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="2"><div>

<ul><li><a href="LMArena" title="LMArena">LMArena</a></li>

<li><a href="List_of_chatbots" title="List of chatbots">List of chatbots</a></li>

</div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="ChatGPT" title="ChatGPT">ChatGPT</a></li>

<li><a href="Claude_(language_model)" title="Claude (language model)">Claude</a></li>

<li><a href="Cohere" title="Cohere">Command</a></li>

<li><a href="Microsoft_Copilot" title="Microsoft Copilot">Copilot</a></li>

<li><a href="DeepSeek_(chatbot)" title="DeepSeek (chatbot)">DeepSeek</a></li>

<li><a href="Ernie_Bot" title="Ernie Bot">Ernie</a></li>

<li><a href="Gemini_(chatbot)" title="Gemini (chatbot)">Gemini</a></li>

<li><a href="Tencent#Research" title="Tencent">Hunyuan</a></li>

<li><a href="Llama_(language_model)" title="Llama (language model)">Llama</a></li>

<li><a href="Mistral_AI" title="Mistral AI">Mistral</a></li>

</div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div>

<ul><li> Category</li></ul>

</div></td></tr></tbody></table></div></div><div><div class="zim-footer">

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