{"id":13540,"date":"2025-10-16T07:33:58","date_gmt":"2025-10-16T07:33:58","guid":{"rendered":"https:\/\/www.insanelymac.com\/blog\/cs-best-ai-detectors\/"},"modified":"2025-10-16T07:35:55","modified_gmt":"2025-10-16T07:35:55","slug":"best-ai-detectors","status":"publish","type":"post","link":"https:\/\/www.insanelymac.com\/blog\/cs\/best-ai-detectors\/","title":{"rendered":"3 nejlep\u0161\u00ed AI detektory pro zji\u0161t\u011bn\u00ed, zda je text vygenerov\u00e1n LLM"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_69_1 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.insanelymac.com\/blog\/cs\/best-ai-detectors\/#jsou_detektory_ai_presne\" title=\"Jsou detektory AI p\u0159esn\u00e9?\">Jsou detektory AI p\u0159esn\u00e9?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.insanelymac.com\/blog\/cs\/best-ai-detectors\/#3_nejlepsi_ai_detektory_pro_rozpoznani_textu_generovaneho_ai\" title=\"3 nejlep\u0161\u00ed AI detektory pro rozpozn\u00e1n\u00ed textu generovan\u00e9ho AI\">3 nejlep\u0161\u00ed AI detektory pro rozpozn\u00e1n\u00ed textu generovan\u00e9ho AI<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.insanelymac.com\/blog\/cs\/best-ai-detectors\/#1_zerogpt\" title=\"1. ZeroGPT\">1. ZeroGPT<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.insanelymac.com\/blog\/cs\/best-ai-detectors\/#2_quillbot\" title=\"2. QuillBot\">2. QuillBot<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.insanelymac.com\/blog\/cs\/best-ai-detectors\/#3_monica\" title=\"3. Monica\">3. Monica<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.insanelymac.com\/blog\/cs\/best-ai-detectors\/#proc_jsme_zvolili_pouze_3_ai_detektory\" title=\"Pro\u010d jsme zvolili pouze 3 AI detektory?\">Pro\u010d jsme zvolili pouze 3 AI detektory?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.insanelymac.com\/blog\/cs\/best-ai-detectors\/#zaverecne_myslenky\" title=\"Z\u00e1v\u011bre\u010dn\u00e9 my\u0161lenky\">Z\u00e1v\u011bre\u010dn\u00e9 my\u0161lenky<\/a><\/li><\/ul><\/nav><\/div>\n<p>Chcete zjistit, zda je text naps\u00e1n \u010dlov\u011bkem nebo um\u011blou inteligenc\u00ed, ale nejste si jisti, jak\u00fd n\u00e1stroj pou\u017e\u00edt \u2014 nebo jste mo\u017en\u00e1 u\u017e n\u011bkter\u00e9 slu\u017eby vyzkou\u0161eli a nebyli spokojeni s v\u00fdsledky? Pr\u00e1v\u011b te\u010f je ide\u00e1ln\u00ed \u010das se na to zeptat, proto\u017ee obory zam\u011b\u0159en\u00e9 na psan\u00ed, jako je vzd\u011bl\u00e1v\u00e1n\u00ed, \u017eurnalistika, marketing a byznys, u\u017e v\u00fdrazn\u011b spol\u00e9haj\u00ed na n\u00e1stroje s um\u011blou inteligenc\u00ed. Studenti s jejich pomoc\u00ed dokon\u010duj\u00ed \u00fakoly, market\u00e9\u0159i vytv\u00e1\u0159ej\u00ed n\u00e1vrhy text\u016f a profesion\u00e1lov\u00e9 upravuj\u00ed zpr\u00e1vy \u2014 to v\u0161e s pomoc\u00ed AI. S \u0161irok\u00fdm vyu\u017e\u00edv\u00e1n\u00edm ChatGPT, Claude a Gemini u\u017e nen\u00ed jednoduch\u00e9 rozli\u0161it pr\u00e1ci \u010dlov\u011bka od v\u00fdstupu AI.<\/p>\n<p>Proto jsme vyzkou\u0161eli n\u011bkolik nejdiskutovan\u011bj\u0161\u00edch AI detektor\u016f, abychom na\u0161li ten nejlep\u0161\u00ed. C\u00edlem nen\u00ed vzbudit ve v\u00e1s strach z AI, ale nab\u00eddnout jasn\u00fd pohled na to, jak tyto n\u00e1stroje skute\u010dn\u011b funguj\u00ed. Mo\u017en\u00e1 si chcete p\u0159ed odevzd\u00e1n\u00edm svou pr\u00e1ci je\u0161t\u011b ov\u011b\u0159it, nebo mo\u017en\u00e1 hodnot\u00edte pr\u00e1ci n\u011bkoho jin\u00e9ho. A\u0165 u\u017e je to jakkoliv, na\u0161e v\u00fdsledky uk\u00e1\u017eou, v \u010dem detektory usp\u011bly, kde selhaly a jak moc jim m\u016f\u017eete v\u011b\u0159it.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"jsou_detektory_ai_presne\"><\/span>Jsou detektory AI p\u0159esn\u00e9?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Je p\u0159irozen\u00e9 se pt\u00e1t, jak p\u0159esn\u011b tyto n\u00e1stroje skute\u010dn\u011b dok\u00e1\u017eou ur\u010dit, zda text poch\u00e1z\u00ed z AI. Odpov\u011b\u010f nen\u00ed tak jednozna\u010dn\u00e1, jak napov\u00eddaj\u00ed marketingov\u00e9 sliby. Kdy\u017e hled\u00e1te \u201cnejlep\u0161\u00ed detektor AI,\u201d rychle najdete dlouh\u00fd seznam str\u00e1nek, kter\u00e9 slibuj\u00ed t\u00e9m\u011b\u0159 dokonal\u00e9 v\u00fdsledky, bez ohledu na to, kter\u00fd model text vygeneroval. V praxi je to v\u0161ak jin\u00e9.<\/p>\n<p>B\u011bhem na\u0161eho vlastn\u00edho testov\u00e1n\u00ed jsme zjistili, \u017ee ne v\u0161echny detektory splnily o\u010dek\u00e1v\u00e1n\u00ed. Ve skute\u010dnosti n\u011bkter\u00e9 programy ozna\u010dily ka\u017ed\u00fd text, kter\u00fd jsme jimi prohnali, jako napsan\u00fd um\u011blou inteligenc\u00ed, i kdy\u017e obsah poch\u00e1zel p\u0159\u00edmo od na\u0161eho editora. To samo o sob\u011b ukazuje, jak k\u0159ehk\u00e1 m\u016f\u017ee b\u00fdt jejich spolehlivost.<\/p>\n<p><b>Abychom otestovali n\u00e1stroj pro detekci AI, pou\u017eili jsme t\u0159i r\u016fzn\u00e9 textov\u00e9 vzorky:<\/b><\/p>\n<ul>\n<li>Cel\u00fd AI text napsan\u00fd v ChatGPT.<img fetchpriority=\"high\" class=\"aligncenter size-full wp-image-13241 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/ai-generated-text-gpt.jpg\" alt=\"AI generovan\u00fd text\" width=\"2117\" height=\"1209\" \/><\/li>\n<li>N\u00e1vrh ur\u010den\u00fd pouze pro lidi, vytvo\u0159en\u00fd na\u0161\u00edm editorem.<img class=\"aligncenter size-full wp-image-13244 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/human-written-text.jpg\" alt=\"Text \u010dlov\u011bka v aplikaci Pozn\u00e1mky\" width=\"1991\" height=\"1115\" \/><\/li>\n<li>Hybridn\u00ed verze (strojov\u00fd text upraven\u00fd pomoc\u00ed AI humaniz\u00e1toru).<img class=\"aligncenter size-full wp-image-13240 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/ai-after-clever-ai-humanizer.jpg\" alt=\"AI humanizovan\u00fd text\" width=\"2494\" height=\"1470\" \/><\/li>\n<\/ul>\n<p>Tento posledn\u00ed p\u0159\u00edpad se uk\u00e1zal b\u00fdt nejodhaluj\u00edc\u00edm. Detektory \u0161lo oklamat s p\u0159ekvapivou lehkost\u00ed. Existuj\u00ed programy speci\u00e1ln\u011b navr\u017een\u00e9 k \u201czlid\u0161t\u011bn\u00ed\u201d AI text\u016f, co\u017e znamen\u00e1, \u017ee p\u0159episuj\u00ed strojov\u011b generovan\u00fd obsah, aby sn\u00ed\u017eily zjevn\u00e9 AI vzorce. Pro n\u00e1\u0161 test jsme pou\u017eili <a href=\"https:\/\/aihumanizer.net\/\">Clever AI Humanizer<\/a>, hlavn\u011b proto, \u017ee bylo zdarma k pou\u017eit\u00ed bez \u010dasov\u00fdch omezen\u00ed na zku\u0161ebn\u00ed verzi. <b>Proces byl jednoduch\u00fd:<\/b><\/p>\n<ol>\n<li>Hled\u00e1me <a href=\"https:\/\/aihumanizer.net\/\">Clever AI Humanizer<\/a> v na\u0161em prohl\u00ed\u017ee\u010di.<img loading=\"lazy\" class=\"aligncenter size-full wp-image-13249 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/open-clever-ai-humanizer-site.jpg\" alt=\"Otev\u0159\u00edt Clever AI Humanizer\" width=\"2494\" height=\"1470\" \/><\/li>\n<li>Zkop\u00edrujte a vlo\u017ete n\u00e1\u0161 AI-generovan\u00fd text do vstupn\u00edho pole a klikn\u011bte na zelen\u00e9 tla\u010d\u00edtko Humanize AI.<img loading=\"lazy\" class=\"aligncenter size-full wp-image-13250 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/paste-text-for-editing-clever-ai-humanizer.jpg\" alt=\"Vlo\u017ete text do Clever AI Humanizer\" width=\"2494\" height=\"1470\" \/><\/li>\n<li>Po\u010dkejte n\u011bkolik sekund, pak zkop\u00edrujte p\u0159epracovanou verzi.<img loading=\"lazy\" class=\"aligncenter size-full wp-image-13242 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/copy-text-from-clever-ai-humanizer.jpg\" alt=\"Kop\u00edrovat text z AI Humanizeru\" width=\"2494\" height=\"1470\" \/><\/li>\n<li>Znovu spus\u0165te tento text p\u0159es AI detektor.<\/li>\n<\/ol>\n<p>V\u00fdsledek? Detektory u\u017e nek\u0159i\u010dely \u201c100 % AI.\u201d M\u00edsto toho klasifikace dramaticky klesla \u2014 n\u011bkdy na 7 %, 10 % nebo jin\u00e9 mal\u00e9 procento. P\u016fvodn\u00ed text napsan\u00fd strojem byl technicky st\u00e1le AI, ale jedin\u00fdm kliknut\u00edm najednou vypadal mnohem lid\u0161t\u011bji.<\/p>\n<p><b>Co to znamen\u00e1 pro p\u0159esnost?<\/b> Tento experiment zd\u016fraz\u0148uje kl\u00ed\u010dov\u00e9 omezen\u00ed: AI detektory funguj\u00ed, ale jejich algoritmy nejsou nepr\u016fst\u0159eln\u00e9. Dosahuj\u00ed nejlep\u0161\u00edch v\u00fdsledk\u016f na syrov\u00fdch, neupraven\u00fdch v\u00fdstupech AI. Ve chv\u00edli, kdy p\u0159ep\u00ed\u0161ete v\u011bty, vym\u011bn\u00edte n\u011bkolik slov nebo text projde p\u0159es humaniz\u00e1tor, v\u00fdsledky detekce se zm\u011bn\u00ed (\u010dasto natolik, \u017ee je tent\u00fd\u017e text ozna\u010den jako \u201cpravd\u011bpodobn\u011b lidsk\u00fd\u201d).<\/p>\n<div class=\"frame_bg frame_bg--default\"><div class=\"frame_bg--title\"><\/div>Z tohoto d\u016fvodu, <b>\u017e\u00e1dn\u00e9 AI kontrolory by nem\u011bly b\u00fdt pova\u017eov\u00e1ny za stoprocentn\u00ed d\u016fkaz<\/b>. V nejlep\u0161\u00edm p\u0159\u00edpad\u011b poskytuj\u00ed bod ov\u011b\u0159en\u00ed \u2014 zp\u016fsob, jak odhalit podez\u0159el\u00e9 vzorce psan\u00ed a polo\u017eit dal\u0161\u00ed ot\u00e1zky. Pokud pot\u0159ebujete jistotu, lidsk\u00fd \u00fasudek a kontextu\u00e1ln\u00ed posouzen\u00ed z\u016fst\u00e1vaj\u00ed nenahraditeln\u00e9.<\/div>\n<h2><span class=\"ez-toc-section\" id=\"3_nejlepsi_ai_detektory_pro_rozpoznani_textu_generovaneho_ai\"><\/span>3 nejlep\u0161\u00ed AI detektory pro rozpozn\u00e1n\u00ed textu generovan\u00e9ho AI<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Nyn\u00ed, kdy\u017e jsme si pro\u0161li omezen\u00ed detektor\u016f AI a uk\u00e1zali jsme, pro\u010d by jejich v\u00fdsledky m\u011bly b\u00fdt br\u00e1ny sp\u00ed\u0161e jako vod\u00edtka ne\u017e jako absolutn\u00ed d\u016fkaz, je \u010das pod\u00edvat se na samotn\u00e9 n\u00e1stroje. N\u00ed\u017ee jsme shrom\u00e1\u017edili nejlep\u0161\u00ed detektory, kter\u00e9 jsme b\u011bhem na\u0161eho testov\u00e1n\u00ed identifikovali.<\/p>\n<p>Pro f\u00e9rovost jsme se zam\u011b\u0159ili na bezplatn\u00e9 verze ka\u017ed\u00e9ho n\u00e1stroje. V\u011bt\u0161ina lid\u00ed, kte\u0159\u00ed hledaj\u00ed AI kontrolor, chce n\u011bco rychl\u00e9ho, dostupn\u00e9ho a zdarma, tak\u017ee d\u00e1valo smysl testovat funkce dostupn\u00e9 bez placen\u00e9ho p\u0159edplatn\u00e9ho. Ve v\u0161ech p\u0159\u00edpadech jsme zkoumali, jak si n\u00e1stroj porad\u00ed s r\u016fzn\u00fdmi typy text\u016f (od surov\u00fdch AI v\u00fdstup\u016f p\u0159es lidsky napsan\u00e9 n\u00e1vrhy a\u017e po hybridn\u00ed pas\u00e1\u017ee upraven\u00e9 humaniz\u00e1torem).<\/p>\n<p>T\u00edmto zp\u016fsobem nejen zjist\u00edte, kter\u00e9 detektory AI psan\u00ed existuj\u00ed, ale tak\u00e9 jak se chovaj\u00ed v realistick\u00fdch situac\u00edch. Na\u0161\u00edm c\u00edlem je uk\u00e1zat, v \u010dem je ka\u017ed\u00e1 volba dobr\u00e1, s \u010d\u00edm m\u00e1 pot\u00ed\u017ee, a pomoci v\u00e1m vybrat tu spr\u00e1vnou pro v\u00e1s.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_zerogpt\"><\/span>1. ZeroGPT<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img loading=\"lazy\" class=\"aligncenter size-full wp-image-13258 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/zerogpt-site.jpg\" alt=\"Webov\u00e1 str\u00e1nka ZeroGPT\" width=\"2457\" height=\"1540\" \/><\/p>\n<p>Pro n\u00e1s, <a href=\"https:\/\/www.zerogpt.com\">ZeroGPT<\/a> je nejspolehliv\u011bj\u0161\u00ed detektor AI (a je to ten, kter\u00fd n\u00e1\u0161 t\u00fdm pou\u017e\u00edv\u00e1, kdykoli m\u00e1me pochybnosti, zda byl text naps\u00e1n zcela \u010dlov\u011bkem). Doposud n\u00e1s ani jednou nezklamal. Zdarma verze u\u017e pokr\u00fdv\u00e1 v\u011bt\u0161inu pot\u0159eb a nab\u00edz\u00ed velkorys\u00fd limit 15 000 znak\u016f na jednu kontrolu. To je v\u00edc ne\u017e dost pro v\u011bt\u0161inu esej\u00ed, \u010dl\u00e1nk\u016f a obchodn\u00edch dokument\u016f (velk\u00e9 diplomky nebo cel\u00e9 zpr\u00e1vy jej samoz\u0159ejm\u011b mohou p\u0159ekro\u010dit). Stoj\u00ed za zm\u00ednku, \u017ee <a href=\"https:\/\/x.com\/ZeroGpt\/status\/1895230711092912317\">ZeroGPT byl pojmenov\u00e1n<\/a> jeden z nejlep\u0161\u00edch softwarov\u00fdch nov\u00e1\u010dk\u016f roku 2025 podle G2, co\u017e je pro mlad\u00fd produkt docela solidn\u00ed uzn\u00e1n\u00ed, nemysl\u00edte?<\/p>\n<p>ZeroGPT nen\u00ed jen detektor. Na str\u00e1nce najdete tak\u00e9 parafr\u00e1zov\u00e1n\u00ed textu pomoc\u00ed AI, chat s AI (kter\u00fd p\u016fsob\u00ed p\u0159ekvapiv\u011b lidsky), kontrolu plagi\u00e1t\u016f, shrnova\u010d, bezplatn\u00fd v\u00edcejazy\u010dn\u00fd p\u0159ekladov\u00fd n\u00e1stroj a n\u011bkolik dal\u0161\u00edch. Tyto n\u00e1stroje maj\u00ed rovn\u011b\u017e denn\u00ed limity na po\u010det znak\u016f nebo slov, ale d\u016fle\u017eit\u00e9 je, \u017ee nen\u00ed omezen po\u010det pou\u017eit\u00ed za den.<\/p>\n<p>Pokud pot\u0159ebujete v\u00edc ne\u017e bezplatnou verzi, jsou k dispozici mo\u017enosti p\u0159edplatn\u00e9ho Pro, Plus a Max. Ka\u017ed\u00e1 z nich roz\u0161i\u0159uje limity pou\u017e\u00edv\u00e1n\u00ed a odemyk\u00e1 funkce jako kontroly PDF zpr\u00e1v, hromadn\u00e9 ov\u011b\u0159ov\u00e1n\u00ed nahran\u00fdch soubor\u016f a vy\u0161\u0161\u00ed limity znak\u016f na po\u017eadavek. Ceny za\u010d\u00ednaj\u00ed na 9,99 $ m\u011bs\u00ed\u010dn\u011b za Pro, 19,99 $ za Plus a 26,99 $ za Max. Proto\u017ee se podrobn\u00e9 rozd\u00edly t\u00fdkaj\u00ed hlavn\u011b limit\u016f pou\u017e\u00edv\u00e1n\u00ed (dal\u0161\u00ed znaky, velikost souboru nebo po\u010det denn\u00edch kontrol), je rozumn\u011bj\u0161\u00ed ov\u011b\u0159it jejich <a href=\"https:\/\/www.zerogpt.com\/pricing\">ofici\u00e1ln\u00ed str\u00e1nky<\/a> pro p\u0159esn\u00e1 \u010d\u00edsla.<\/p>\n<p>Nebudeme v tomto \u010dl\u00e1nku popisovat v\u00fdhody a nev\u00fdhody ka\u017ed\u00e9ho detektoru. Na\u0161\u00edm hlavn\u00edm krit\u00e9riem bylo, jak si vedly v re\u00e1ln\u00fdch testech nap\u0159\u00ed\u010d r\u016fzn\u00fdmi typy text\u016f. Porovn\u00e1vat limity znak\u016f n\u00e1m p\u0159ipad\u00e1 bezv\u00fdznamn\u00e9 (co je tis\u00edc znak\u016f nav\u00edc nebo m\u00e9n\u011b?). Pokud ale zjist\u00edme skute\u010dn\u00fd nedostatek, upozorn\u00edme na n\u011bj.<\/p>\n<p>V p\u0159\u00edpad\u011b ZeroGPT jsme narazili pouze na jednu zvl\u00e1\u0161tnost v prohl\u00ed\u017ee\u010di Opera, kde se ob\u010das nezobrazilo textov\u00e9 pole pro zad\u00e1n\u00ed. V Safari a Chrome v\u0161e fungovalo hladce.<\/p>\n<p><b>Zde je, jak si ZeroGPT vedl v na\u0161em t\u0159\u00ed\u00farov\u0148ov\u00e9m testu:<\/b><\/p>\n<ul>\n<li>Surov\u00fd text z GPT byl spr\u00e1vn\u011b ozna\u010den jako AI.<img loading=\"lazy\" class=\"aligncenter size-full wp-image-13255 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/zepogpt-ai-generated-text-result.jpg\" alt=\"V\u00fdsledek textu generovan\u00e9ho um\u011blou inteligenc\u00ed ZeroGPT\" width=\"2457\" height=\"1540\" \/><\/li>\n<li>Lidsky napsan\u00fd n\u00e1vrh byl spr\u00e1vn\u011b ozna\u010den jako lidsk\u00fd.<img loading=\"lazy\" class=\"aligncenter size-full wp-image-13257 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/zerogpt-human-text-result.jpg\" alt=\"ZeroGPT Lidsk\u00fd Text \" width=\"2457\" height=\"1540\" \/><\/li>\n<li>AI text zpracovan\u00fd pomoc\u00ed humaniz\u00e9ru byl ozna\u010den jako lidsk\u00fd, i kdy\u017e jej \u017e\u00e1dn\u00e1 osoba neupravovala.<img loading=\"lazy\" class=\"aligncenter size-full wp-image-13256 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/zerogpt-ai-humanized-text-result.jpg\" alt=\"ZeroGPT Humanizovan\u00fd Text\" width=\"2457\" height=\"1540\" \/><\/li>\n<\/ul>\n<p>Zat\u00edmco ZeroGPT ud\u011blal p\u0159esn\u011b to, co jsme o\u010dek\u00e1vali v prvn\u00edch dvou p\u0159\u00edpadech, tak\u00e9 uk\u00e1zal to, na co jsme d\u0159\u00edve upozor\u0148ovali: texty vytvo\u0159en\u00e9 AI, kter\u00e9 jsou &#8220;zlid\u0161t\u011bn\u00e9&#8221;, mohou oklamat i ty nejp\u0159esn\u011bj\u0161\u00ed detektory AI.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_quillbot\"><\/span>2. QuillBot<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img loading=\"lazy\" class=\"aligncenter size-full wp-image-13254 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/quillbot-site.jpg\" alt=\"Webov\u00e1 str\u00e1nka QuillBot\" width=\"2457\" height=\"1540\" \/><\/p>\n<p>Pak jsme dali <a href=\"https:\/\/quillbot.com\">QuillBot<\/a>. V\u011bt\u0161ina lid\u00ed ji zn\u00e1 jako n\u00e1stroj pro p\u0159eformulov\u00e1n\u00ed a vylep\u0161en\u00ed textu a samotn\u00e1 spole\u010dnost zd\u016fraz\u0148uje \u201czlep\u0161en\u00ed srozumitelnosti, opravu formulac\u00ed a pos\u00edlen\u00ed va\u0161eho psan\u00ed.\u201d Krom\u011b zn\u00e1m\u00e9ho parafr\u00e1zova\u010de, gramatick\u00e9 kontroly a shrnut\u00ed v\u0161ak QuillBot zahrnuje tak\u00e9 AI analyz\u00e1tor. Bezplatn\u00e1 verze pokr\u00fdv\u00e1 v\u0161echny n\u00e1stroje s ur\u010dit\u00fdmi limity pou\u017e\u00edv\u00e1n\u00ed. U AI analyz\u00e1toru konkr\u00e9tn\u011b m\u016f\u017eete vlo\u017eit a\u017e 1 200 slov na jeden sken. Vedle detektoru najdete funkce podobn\u00e9 t\u011bm, kter\u00e9 jsme vid\u011bli d\u0159\u00edve: parafr\u00e1zov\u00e1n\u00ed, oprava gramatiky, kontrola plagi\u00e1torstv\u00ed, p\u0159eklad a sumarizace.<\/p>\n<p>Za zm\u00ednku tak\u00e9 stoj\u00ed, \u017ee QuillBot nen\u00ed v oblasti AI \u017e\u00e1dn\u00fdm nov\u00e1\u010dkem a ned\u00e1vno se objevil v <a href=\"https:\/\/www.linkedin.com\/posts\/quillbot_hey-now-were-an-all-starat-least-according-activity-7366832163347959808-1A4e\">Top 100 AI aplikac\u00ed podle Andreessen Horowitz<\/a> seznam (v\u0161ech p\u011btkr\u00e1t, kdy byl seznam publikov\u00e1n). To je siln\u00fd sign\u00e1l jeho trval\u00e9 hodnoty a \u0161irok\u00e9ho p\u0159ijet\u00ed.<\/p>\n<p>Co se t\u00fd\u010de ceny, QuillBot nab\u00edz\u00ed pl\u00e1n Premium za 4,17 $ m\u011bs\u00ed\u010dn\u011b, ov\u0161em h\u00e1\u010dek spo\u010d\u00edv\u00e1 v tom, \u017ee t\u00e9to ceny dos\u00e1hnete pouze p\u0159i ro\u010dn\u00ed platb\u011b, co\u017e je naps\u00e1no men\u0161\u00edm p\u00edsmem pod tu\u010dnou cenovkou. Pokud se rozhodnete p\u0159edplatit, m\u011bjte tuto skute\u010dnost na pam\u011bti. Pr\u00e9miov\u00e1 verze v\u00fdrazn\u011b roz\u0161i\u0159uje bezplatn\u00e9 limity u v\u0161ech n\u00e1stroj\u016f. V p\u0159\u00edpad\u011b AI detektoru jsou omezen\u00ed po\u010dtu slov zcela odstran\u011bna, tak\u017ee m\u016f\u017eete kontrolovat i del\u0161\u00ed dokumenty bez nutnosti je d\u011blit.<\/p>\n<p><b>Zde je, jak si QuillBot vedl ve stejn\u00fdch t\u0159ech testech, kter\u00e9 jsme pou\u017eili s ZeroGPT:<\/b><\/p>\n<ul>\n<li>Surov\u00fd text z GPT QuillBot nebyl ozna\u010den jako 100% AI (pouze 77 %). Porovn\u00e1n\u00edm screenshot\u016f z na\u0161eho testu ZeroGPT a tohoto zjist\u00edte, \u017ee jsme pou\u017eili zcela stejn\u00fd, nezm\u011bn\u011bn\u00fd v\u00fdstup surov\u00e9ho textu. V tomto p\u0159\u00edpad\u011b byla detekce pomoc\u00ed QuillBot o n\u011bco m\u00e9n\u011b p\u0159esn\u00e1 ne\u017e pomoc\u00ed ZeroGPT.<img loading=\"lazy\" class=\"aligncenter size-full wp-image-13251 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/quill-ai-generated-text-result.jpg\" alt=\"V\u00fdsledky textu QuillBot AI\" width=\"2457\" height=\"1540\" \/><\/li>\n<li>Lidsk\u00fd n\u00e1vrh byl spr\u00e1vn\u011b identifikov\u00e1n jako lidsk\u00fd.<img loading=\"lazy\" class=\"aligncenter size-full wp-image-13252 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/quillbot-human-text-result.jpg\" alt=\"QuillBot Lidsk\u00fd text\" width=\"2457\" height=\"1540\" \/><\/li>\n<li>Humanizovan\u00fd AI text, jako nap\u0159\u00edklad u ZeroGPT, detektor zm\u00e1tl. Text pro\u0161el jako lidsky napsan\u00fd.<img loading=\"lazy\" class=\"aligncenter size-full wp-image-13253 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/quillbot-humanized-text-result.jpg\" alt=\"QuillBot Humanizovan\u00fd Text\" width=\"2457\" height=\"1540\" \/><\/li>\n<\/ul>\n<p>A\u010dkoli je QuillBot AI kontrolor \u00fa\u010dinn\u00fd a dok\u00e1\u017ee odhalit \u010d\u00e1st strojov\u011b psan\u00e9ho textu, podle na\u0161ich zku\u0161enost\u00ed jeho p\u0159esnost m\u00edrn\u011b zaost\u00e1v\u00e1 za ZeroGPT. P\u0159esto z\u016fst\u00e1v\u00e1 silnou v\u0161estrannou volbou.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_monica\"><\/span>3. Monica<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img loading=\"lazy\" class=\"aligncenter size-full wp-image-13248 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/monica-site.jpg\" alt=\"Monica Webov\u00e1 str\u00e1nka\" width=\"2457\" height=\"1540\" \/><\/p>\n<p>A posledn\u00ed AI detektor, kter\u00fd v\u00e1m m\u016f\u017eeme doporu\u010dit, je <a href=\"https:\/\/monica.im\/\">Monica<\/a>Na rozd\u00edl od ostatn\u00edch n\u00e1stroj\u016f na na\u0161em seznamu Monica nespol\u00e9h\u00e1 na jedin\u00fd vlastn\u00ed detek\u010dn\u00ed model. M\u00edsto toho kombinuje v\u00fdsledky z n\u011bkolika nejuzn\u00e1van\u011bj\u0161\u00edch slu\u017eeb \u2013 v\u010detn\u011b ZeroGPT, GPTZero a CopyLeaks. Jin\u00fdmi slovy, kdy\u017e vlo\u017e\u00edte text do Monica, nevynal\u00e9z\u00e1 znovu kolo, ale d\u00e1v\u00e1 dohromady verdikty z v\u00edce detektor\u016f, aby v\u00e1m poskytl \u0161ir\u0161\u00ed pohled.<\/p>\n<p>Uvnit\u0159 Monica m\u016f\u017eete nejen detekovat AI-generovan\u00fd text, ale tak\u00e9 generovat text pomoc\u00ed v\u00edce model\u016f (GPT, Gemini, DeepSeek, Claude), \u201apolid\u0161\u0165ovat\u2018 text, pou\u017e\u00edvat AI na matematiku, vytv\u00e1\u0159et a animovat obr\u00e1zky, generovat videa a mnohem v\u00edce. Je to v podstat\u011b cel\u00e9 AI studio zabalen\u00e9 do jedn\u00e9 slu\u017eby. Pro na\u0161e \u00fa\u010dely jsme se v\u0161ak zam\u011b\u0159ili pouze na funkci detekce.<\/p>\n<p>V\u00fdsledky byly solidn\u00ed, ale zku\u0161ebn\u00ed verze je nejp\u0159\u00edsn\u011bj\u0161\u00ed ze v\u0161ech n\u00e1stroj\u016f, kter\u00e9 jsme testovali \u2014 na vyzkou\u0161en\u00ed dostanete jen 1 000 slov, ne\u017e v\u00e1s platforma p\u0159esm\u011bruje k placen\u00e9mu tarifu. Ceny jsou pom\u011brn\u011b f\u00e9rov\u00e9: okolo 9,90 $ m\u011bs\u00ed\u010dn\u011b za z\u00e1kladn\u00ed p\u0159edplatn\u00e9 a 24,90 $ m\u011bs\u00ed\u010dn\u011b za neomezen\u00e9 pou\u017e\u00edv\u00e1n\u00ed. Pokud zaplat\u00edte ro\u010dn\u011b, cena v\u00fdrazn\u011b klesne. A m\u011bjte na pam\u011bti, \u017ee toto p\u0159edplatn\u00e9 nepokr\u00fdv\u00e1 jen AI detektor, ale tak\u00e9 v\u0161echny dal\u0161\u00ed kreativn\u00ed n\u00e1stroje, kter\u00e9 Monica nab\u00edz\u00ed.<\/p>\n<p><b>Zde je, jak si Monica vedl v na\u0161ich t\u0159ech standardn\u00edch testech:<\/b><\/p>\n<ul>\n<li>Text generovan\u00fd p\u0159\u00edmo v GPT byl ozna\u010den s 100% jistotou jako AI.<img loading=\"lazy\" class=\"aligncenter size-full wp-image-13245 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/monica-ai-generated-text-result.jpg\" alt=\"Monica AI Text\" width=\"2457\" height=\"1540\" \/><\/li>\n<li>Text napsan\u00fd \u010dlov\u011bkem byl rozpozn\u00e1n jako autenticky lidsk\u00fd.<img loading=\"lazy\" class=\"aligncenter size-full wp-image-13246 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/monica-human-text-result.jpg\" alt=\"Monica V\u00fdsledek lidsk\u00e9ho textu\" width=\"2457\" height=\"1540\" \/><\/li>\n<li>Pot\u00e9, co jsme text vytvo\u0159en\u00fd AI pro\u0161li humaniz\u00e1torem, Monica jej nedok\u00e1zal odhalit a pova\u017eoval v\u00fdstup za lidsky napsan\u00fd, p\u0159esto\u017ee \u017e\u00e1dn\u00fd \u010dlov\u011bk nebyl do procesu zapojen, stejn\u011b jako jin\u00e9 n\u00e1stroje.<img loading=\"lazy\" class=\"aligncenter size-full wp-image-13247 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/monica-humanized-text-result.jpg\" alt=\"Monica humanizovan\u00fd text\" width=\"2457\" height=\"1540\" \/><\/li>\n<\/ul>\n<p>Nem\u016f\u017eeme nazvat Monica nejlep\u0161\u00edm bezplatn\u00fdm AI detektorem (zku\u0161ebn\u00ed verze je prost\u011b p\u0159\u00edli\u0161 omezuj\u00edc\u00ed), ale nepopirateln\u011b je to slu\u017eba s nejv\u011bt\u0161\u00ed rozmanitost\u00ed AI n\u00e1stroj\u016f, jak\u00e9 jsme vid\u011bli. Pro tv\u016frce obsahu, specialisty na SMM nebo kohokoli, kdo chce m\u00edt jednu platformu pokr\u00fdvaj\u00edc\u00ed text, obr\u00e1zky i video, vypad\u00e1 Monica jako t\u00e9m\u011b\u0159 dokonal\u00e1 volba.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"proc_jsme_zvolili_pouze_3_ai_detektory\"><\/span>Pro\u010d jsme zvolili pouze 3 AI detektory?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Mo\u017en\u00e1 v\u00e1s zaj\u00edm\u00e1, pro\u010d n\u00e1\u0161 seznam obsahuje pouze t\u0159i n\u00e1stroje, kdy\u017e online existuj\u00ed des\u00edtky AI ov\u011b\u0159ova\u010d\u016f. Pravdou je, \u017ee jsme ve skute\u010dnosti otestovali v\u00edce ne\u017e deset r\u016fzn\u00fdch detektor\u016f (nebo ChatGPT detektor\u016f, jak jim v na\u0161em t\u00fdmu \u0159\u00edk\u00e1me). Ale mnoho z nich selhalo v z\u00e1kladn\u00edch testech.<\/p>\n<p>V n\u011bkolika p\u0159\u00edpadech detektory ozna\u010dily text napsan\u00fd na\u0161\u00edm redaktorem za 100% (nebo t\u00e9m\u011b\u0159) generovan\u00fd um\u011blou inteligenc\u00ed. Jeliko\u017e jsme s jistotou v\u011bd\u011bli, \u017ee n\u00e1vrh poch\u00e1z\u00ed od \u010dlov\u011bka, byly tyto v\u00fdsledky nep\u0159ijateln\u00e9. M\u011bli jsme za\u0159adit takov\u00e9 n\u00e1stroje do na\u0161eho \u017eeb\u0159\u00ed\u010dku jen proto, abychom ho prodlou\u017eili? Samoz\u0159ejm\u011b \u017ee ne.<\/p>\n<p><img loading=\"lazy\" class=\"aligncenter size-full wp-image-13243 border-gray\" src=\"\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2025\/09\/gpt-zero-scaled.jpg\" alt=\"V\u00fdsledky GPT Zero\" width=\"2560\" height=\"1609\" \/><\/p>\n<div class=\"frame_bg frame_bg--default\"><div class=\"frame_bg--title\"><\/div>Mohli jsme snadno roz\u0161\u00ed\u0159it v\u00fdb\u011br na deset nebo dokonce patn\u00e1ct n\u00e1stroj\u016f, internet je jich pln\u00fd, ale jak\u00fd to m\u00e1 smysl, kdy\u017e nefunguj\u00ed? Na\u0161\u00edm c\u00edlem nen\u00ed v\u00e1s zahltit mo\u017enostmi, ale zd\u016fraznit detektory, kter\u00e9 obst\u00e1ly v re\u00e1ln\u00fdch testech. P\u0159esnost je zde d\u016fle\u017eit\u00e1, proto\u017ee pokud v\u00e1m n\u00e1stroj \u0159ekne, \u017ee je v\u00e1\u0161 text lidsk\u00fd, kdy\u017e nen\u00ed (nebo naopak), d\u016fsledky mohou b\u00fdt v\u00e1\u017en\u00e9. P\u0159edstavte si, \u017ee odevzd\u00e1te esej, \u010dl\u00e1nek nebo zpr\u00e1vu a bude odm\u00edtnuta jen proto, \u017ee se detektor spletl. To je typ chyby, kter\u00e9 v\u00e1m chceme pomoci se vyhnout.<\/div>\n<h2><span class=\"ez-toc-section\" id=\"zaverecne_myslenky\"><\/span>Z\u00e1v\u011bre\u010dn\u00e9 my\u0161lenky<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Hmm, kdybys v\u011bd\u011bl, kolik \u00fasil\u00ed n\u00e1s to testov\u00e1n\u00ed st\u00e1lo\u2026 Uk\u00e1zkov\u00fd text o cestov\u00e1n\u00ed po Evrop\u011b n\u00e1s asi bude pron\u00e1sledovat je\u0161t\u011b n\u011bkolik dal\u0161\u00edch noc\u00ed. P\u0159esto jsme spokojeni s v\u00fdsledky, kter\u00e9 jsme z\u00edskali, a te\u010f je m\u00e1\u0161 i ty. Pod\u00edvej se na n\u00e1\u0161 seznam nejlep\u0161\u00edch AI detektor\u016f, vyber si ten, kter\u00fd ti nejl\u00e9pe vyhovuje, a vyzkou\u0161ej ho na sv\u00fdch vlastn\u00edch textech.<\/p>\n<p>To znamen\u00e1, \u017ee to je\u0161t\u011b jednou zd\u016frazn\u00edme: nepova\u017eujte v\u00fdsledky detektor\u016f za 100% d\u016fkaz. Jak jsme uk\u00e1zali, ne ka\u017ed\u00fd AI detektor je spolehliv\u00fd a mnoho jich m\u016f\u017ee b\u00fdt oklam\u00e1no humaniz\u00e9ry jako Clever AI Humanizer. Tyto n\u00e1stroje jsou u\u017eite\u010dn\u00fdmi indik\u00e1tory, ale nejsou posledn\u00edm slovem.<\/p>\n<p>Pokud v\u00e1s toto t\u00e9ma zaj\u00edm\u00e1, mo\u017en\u00e1 byste si tak\u00e9 cht\u011bli p\u0159e\u010d\u00edst na\u0161e dal\u0161\u00ed \u010dl\u00e1nky, nap\u0159\u00edklad pr\u016fvodce na <a href=\"\/blog\/detect-ai-generated-text\/\">jak rozpoznat text vytvo\u0159en\u00fd um\u011blou inteligenc\u00ed<\/a> (bez spol\u00e9h\u00e1n\u00ed se pouze na detektory), nebo tipy na <a href=\"\/blog\/how-to-humanize-ai-content\/\">jak polid\u0161tit AI text<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Chcete zjistit, zda je text naps\u00e1n \u010dlov\u011bkem nebo um\u011blou inteligenc\u00ed, ale nejste si jisti, jak\u00fd n\u00e1stroj pou\u017e\u00edt \u2014 nebo jste mo\u017en\u00e1 u\u017e n\u011bkter\u00e9 slu\u017eby vyzkou\u0161eli a nebyli spokojeni s v\u00fdsledky? Pr\u00e1v\u011b te\u010f je ide\u00e1ln\u00ed \u010das se na to zeptat, proto\u017ee obory zam\u011b\u0159en\u00e9 na psan\u00ed, jako je vzd\u011bl\u00e1v\u00e1n\u00ed, \u017eurnalistika, marketing a byznys, u\u017e v\u00fdrazn\u011b spol\u00e9haj\u00ed na [&hellip;]<\/p>\n","protected":false},"author":28,"featured_media":1588,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[254],"tags":[],"slider-tags":[],"class_list":["post-13540","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-software-cs"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>3 nejlep\u0161\u00ed AI detektory pro zji\u0161t\u011bn\u00ed, zda je text vygenerov\u00e1n LLM (2025)<\/title>\n<meta name=\"description\" content=\"Objevte 3 nejlep\u0161\u00ed AI detektory pro kontrolu, zda byl text vygenerov\u00e1n velk\u00fdmi jazykov\u00fdmi modely. Zjist\u011bte, jak tyto n\u00e1stroje funguj\u00ed, a vyberte si ten spr\u00e1vn\u00fd pro p\u0159esnou detekci.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.insanelymac.com\/blog\/cs\/best-ai-detectors\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"3 nejlep\u0161\u00ed AI detektory pro zji\u0161t\u011bn\u00ed, zda je text vygenerov\u00e1n LLM (2025)\" \/>\n<meta property=\"og:description\" content=\"Objevte 3 nejlep\u0161\u00ed AI detektory pro kontrolu, zda byl text vygenerov\u00e1n velk\u00fdmi jazykov\u00fdmi modely. Zjist\u011bte, jak tyto n\u00e1stroje funguj\u00ed, a vyberte si ten spr\u00e1vn\u00fd pro p\u0159esnou detekci.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.insanelymac.com\/blog\/cs\/best-ai-detectors\/\" \/>\n<meta property=\"og:site_name\" content=\"InsanelyMac Blog - Mac and iOS Reviews\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.insanelymac.com\/blog\/wp-content\/uploads\/2021\/05\/How-to-Recover-Deleted-Files-on-Your-Mac.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"300\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Jeff Cochin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jeff Cochin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"14 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"3 nejlep\u0161\u00ed AI detektory pro zji\u0161t\u011bn\u00ed, zda je text vygenerov\u00e1n LLM (2025)","description":"Objevte 3 nejlep\u0161\u00ed AI detektory pro kontrolu, zda byl text vygenerov\u00e1n velk\u00fdmi jazykov\u00fdmi modely. 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