{"id":1219,"date":"2026-04-25T16:58:24","date_gmt":"2026-04-25T16:58:24","guid":{"rendered":"https:\/\/aidetector.com\/blog\/?page_id=1219"},"modified":"2026-04-25T18:28:41","modified_gmt":"2026-04-25T18:28:41","slug":"quillbot","status":"publish","type":"page","link":"https:\/\/aidetector.com\/blog\/quillbot\/","title":{"rendered":"QuillBot Review"},"content":{"rendered":"<div id=\"toc_custom\"><p><strong>QuillBot\u00a0<\/strong>(<a href=\"https:\/\/quillbot.com\/\" target=\"_blank\" rel=\"noopener\">quillbot.com<\/a>) is a writing assistant and AI detector that launched in 2017.<a href=\"#source-1\"><sup>[1]<\/sup><\/a> It initially offered only a paraphrasing tool, but now provides plagiarism and grammar checkers, a humanizer, and AI detectors for both text and images.<\/p>\n<p>While QuillBot is known as a powerful writing aid, we primarily tested its AI detector to see how well it could distinguish human writing from LLM-generated text.<\/p>\n<div class=\"pros-cons-colored\">\n<div class=\"pros-box\">\n<h4 id=\"Pros\">Pros<\/h4>\n<ul>\n<li><strong>Only 1 false positive <\/strong>during testing.<\/li>\n<li data-section-id=\"gebjxy\" data-start=\"159\" data-end=\"202\">Detected plagiarism <strong>7 of 10 times<\/strong>.<\/li>\n<li data-section-id=\"1hqffxx\" data-start=\"233\" data-end=\"278\">Multiple tools available for free.<\/li>\n<li>Fast AI detection results.<\/li>\n<\/ul>\n<\/div>\n<div class=\"cons-box\">\n<h4 id=\"Cons\">Cons<\/h4>\n<ul>\n<li>Failed to spot AI in <strong>4 of 7 tests<\/strong>.<\/li>\n<li><strong>7 of 8 humanized texts<\/strong> passed detection.<\/li>\n<li>Slow plagiarism results with limited monthly usage.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<div class=\"key-features\">\n<h3 id=\"Key_Features\"><span style=\"text-decoration: underline;\">Features<\/span><\/h3>\n<ul>\n<li><strong>AI detection<\/strong>: Scans images and text for AI generation.<\/li>\n<li><strong>Plagiarism checker<\/strong>: Finds similar or copied content online.<\/li>\n<li><strong>AI chat<\/strong>: Virtual writing assistant that responds to requests.<\/li>\n<li><strong>Citation generator<\/strong>: Creates full citations in over 1,000 styles.<\/li>\n<li><strong>Paraphraser<\/strong>: A tool for rewriting text.<\/li>\n<li><strong>Humanizer<\/strong>: Modifies AI content to appear human-written.<\/li>\n<li><strong>Image creator<\/strong>: Generates images from text descriptions.<\/li>\n<li><strong>MS Word add-in<\/strong>: <a href=\"https:\/\/quillbot.com\/word\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-236\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/01\/Big-Link-550x550.png\" alt=\"\" width=\"18\" height=\"18\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/01\/Big-Link-550x550.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/01\/Big-Link-20x20.png 20w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/01\/Big-Link.png 750w\" sizes=\"auto, (max-width: 18px) 100vw, 18px\" \/><\/a><\/li>\n<li><strong>Browser extensions<\/strong><a href=\"https:\/\/quillbot.com\/app\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-236\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/01\/Big-Link-550x550.png\" alt=\"\" width=\"18\" height=\"18\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/01\/Big-Link-550x550.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/01\/Big-Link-20x20.png 20w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/01\/Big-Link.png 750w\" sizes=\"auto, (max-width: 18px) 100vw, 18px\" \/><\/a><\/li>\n<li><strong>Desktop &amp; mobile apps<\/strong><a href=\"https:\/\/quillbot.com\/app\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-236\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/01\/Big-Link-550x550.png\" alt=\"\" width=\"18\" height=\"18\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/01\/Big-Link-550x550.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/01\/Big-Link-20x20.png 20w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/01\/Big-Link.png 750w\" sizes=\"auto, (max-width: 18px) 100vw, 18px\" \/><\/a><\/li>\n<\/ul>\n<\/div>\n<h2><span style=\"text-decoration: underline;\">Pricing Plans<\/span><\/h2>\n<table class=\"table-rev\" style=\"background-color: #fff;\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\"><strong>Free<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>Premium<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>Team<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Sign-up required for certain features<\/td>\n<td style=\"text-align: center;\">$19.95\/month, $39.95\/quarter, $99.95\/year (student discounts available)<\/td>\n<td style=\"text-align: center;\">$89.95\/year\/user (2-10 users), $79.95\/year\/user (11-50 users), $69.95\/year\/user (51+ users)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">10 AI detection scans\/day (up to 1,200 words)<\/td>\n<td style=\"text-align: center;\">Unlimited AI detection scans<\/td>\n<td style=\"text-align: center;\">Unlimited AI detection scans<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Limited versions of most tools; <span style=\"text-decoration: underline;\">excludes<\/span> plagiarism checker, faster processing, priority support, and multi-user access.<\/td>\n<td style=\"text-align: center;\">Advanced versions of all tools; <span style=\"text-decoration: underline;\">excludes<\/span>\u00a0priority support and multi-user access.<\/td>\n<td style=\"text-align: center;\">All premium features plus priority support and multi-user access.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"alert alert-secondary\">\n<p><span style=\"text-decoration: underline;\">Usage Limitations<\/span><\/p>\n<p>Many generative AI platforms use a credit system where users spend credits they&#8217;ve purchased to complete tasks. However, QuillBot takes a different approach by limiting usage through <strong>word caps and daily or monthly thresholds<\/strong> that vary by plan.<\/p>\n<p>A side-by-side comparison of the features and limitations of each QuillBot plan is <a href=\"https:\/\/quillbot.com\/premium\" target=\"_blank\" rel=\"noopener\">available here<\/a>.<\/p>\n<\/div>\n<h2><span style=\"text-decoration: underline;\">Test #1: QuillBot vs. LLMs<\/span><\/h2>\n<div class=\"alert alert-danger\"><strong>Failed Against LLMs<\/strong> &#8211; When faced with content fully generated by an LLM, QuillBot <span style=\"text-decoration: underline;\">did not perform well<\/span> and detected AI with accuracy in only <strong>3 of 7 tests<\/strong>.<\/div>\n<p style=\"text-align: left;\">The goal of our first test was to check the accuracy of QuillBot\u2019s AI detector. We used ChatGPT, Google Gemini, and other top LLMs to create short articles from the prompt below. We then scanned the LLM-generated text with QuillBot.<\/p>\n<p><span style=\"text-decoration: underline;\">Prompt Used<\/span><\/p>\n<blockquote><p>&#8220;Write an article about the three biggest issues affecting the Amazon rainforest. Stick to factual information and use a natural writing style that reads like it was written by a person, with the goal of avoiding AI detection. Keep it under 500 words and do not use em dashes.&#8221;<\/p><\/blockquote>\n\n        <div class=\"shortcode_wrapper collapsible collapsible-collapsed border rounded-md\">\n            <div class=\"collapsible-header p-2 flex justify-between items-start gap-4\">\n\n                                    <div class=\"text-lg font-bold self-center\">\n                        Test Results                    <\/div>\n                \n                <div  class=\"collapsible-button btn h-11\">\n                    <img decoding=\"async\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/plugins\/collapsible-table-shortcode\/plus.svg\" \/>\n                    Expand\n                <\/div>\n\n                <div  class=\"collapsible-button btn h-11 hidden\">\n                     <img decoding=\"async\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/plugins\/collapsible-table-shortcode\/minus.svg\" \/>\n                    Collapse\n                <\/div>\n\n            <\/div>\n\n            <div class=\"collapsible-area transition-all overflow-y-hidden min-h-40 h-40 relative\">\n\n                <div class=\"collapsible-content border-y p-4 \">\n                    <\/p>\n<table class=\"table-rev\" style=\"background-color: #fff;\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\">LLM<\/td>\n<td style=\"text-align: center;\"><strong>Test Result<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>Proof<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><b>ChatGPT &#8211; 5.4 Thinking Model<\/b><\/p>\n<p>(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/ChatGPT-5.4-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.txt\" target=\"_blank\" rel=\"noopener\">generated text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>90% AI<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u2705<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/ChatGPT-5.4-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1854\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/ChatGPT-5.4-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x295.png\" alt=\"\" width=\"550\" height=\"295\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/ChatGPT-5.4-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x295.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/ChatGPT-5.4-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1024x548.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/ChatGPT-5.4-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-768x411.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/ChatGPT-5.4-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1536x823.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/ChatGPT-5.4-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.png 1912w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Claude &#8211; Sonnet 4.6<\/strong><\/p>\n<p>(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Claude-Sonnet-4.6-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.txt\" target=\"_blank\" rel=\"noopener\">generated text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>0% AI<\/strong><\/p>\n<p>\u274c<\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Claude-Sonnet-4.6-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1856\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Claude-Sonnet-4.6-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x293.png\" alt=\"\" width=\"550\" height=\"293\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Claude-Sonnet-4.6-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x293.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Claude-Sonnet-4.6-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1024x546.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Claude-Sonnet-4.6-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-768x410.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Claude-Sonnet-4.6-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1536x819.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Claude-Sonnet-4.6-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-2048x1092.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><b>Google Gemini &#8211; Thinking<\/b><\/p>\n<p>(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Google-Gemini-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.txt\" target=\"_blank\" rel=\"noopener\">generated text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>100% AI<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u2705<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Google-Gemini-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1858\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Google-Gemini-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x293.png\" alt=\"\" width=\"550\" height=\"293\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Google-Gemini-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x293.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Google-Gemini-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1024x546.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Google-Gemini-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-768x410.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Google-Gemini-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1536x820.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Google-Gemini-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-2048x1093.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>DeepSeek &#8211; DeepThink<\/strong><\/p>\n<p>(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/DeepSeek-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.txt\" target=\"_blank\" rel=\"noopener\">generated text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>0%<\/strong><\/p>\n<p>\u274c<\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/DeepSeek-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1860\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/DeepSeek-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x295.png\" alt=\"\" width=\"550\" height=\"295\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/DeepSeek-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x295.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/DeepSeek-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1024x548.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/DeepSeek-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-768x411.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/DeepSeek-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1536x823.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/DeepSeek-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-2048x1097.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Perplexity &#8211; Free Model<\/strong><\/p>\n<p>(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Perplexity-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.txt\" target=\"_blank\" rel=\"noopener\">generated text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>62% AI<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u2705<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Perplexity-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1862\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Perplexity-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x292.png\" alt=\"\" width=\"550\" height=\"292\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Perplexity-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x292.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Perplexity-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1024x544.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Perplexity-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-768x408.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Perplexity-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1536x816.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Perplexity-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-2048x1088.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Grok &#8211; Auto<\/strong><\/p>\n<p>(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grok-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.txt\" target=\"_blank\" rel=\"noopener\">generated text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>43% AI<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\ud83d\udfe1<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grok-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1864\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grok-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x292.png\" alt=\"\" width=\"550\" height=\"292\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grok-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x292.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grok-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1024x544.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grok-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-768x408.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grok-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1536x817.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grok-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-2048x1089.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Meta &#8211; Thinking<\/strong><\/p>\n<p>(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Meta-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.txt\" target=\"_blank\" rel=\"noopener\">generated text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>0% AI<\/strong><\/p>\n<p>\u274c<\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Meta-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1866\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Meta-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x294.png\" alt=\"\" width=\"550\" height=\"294\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Meta-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x294.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Meta-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1024x547.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Meta-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-768x410.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Meta-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1536x820.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Meta-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-2048x1094.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>                <\/div>\n\n                <div class=\"collapsible-footer p-2 flex justify-end items-start\">\n                    <div class=\"collapsible-button btn h-11 hidden\">\n                        <img decoding=\"async\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/plugins\/collapsible-table-shortcode\/minus.svg\" \/>\n                        Collapse\n                    <\/div>\n                <\/div>\n\n                <div class=\"collapsible-dimmer absolute bottom-0 rounded-md w-full h-28 bg-gradient-to-t from-white to-transparent\"><\/div>\n\n            <\/div>\n        <\/div>\n\n        \n<h2 id=\"Testing_AI_Humanizers_8\"><span style=\"text-decoration: underline;\">Test #2: QuillBot vs. AI Humanizers<\/span><\/h2>\n<div class=\"alert alert-error\"><strong>Failed Against Humanizers<\/strong> &#8211; QuillBot failed <strong>7 of 8 times\u00a0<\/strong>when put up against AI humanizers.<\/div>\n<p>In our second test, we ran the <a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/ChatGPT-5.4-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.txt\" target=\"_blank\" rel=\"noopener\">above ChatGPT-generated text<\/a> through eight different AI humanizers. The resulting humanized content was then scanned with QuillBot to determine whether it could still detect the AI-generated writing.<\/p>\n\n        <div class=\"shortcode_wrapper collapsible collapsible-collapsed border rounded-md\">\n            <div class=\"collapsible-header p-2 flex justify-between items-start gap-4\">\n\n                                    <div class=\"text-lg font-bold self-center\">\n                        Test Results                    <\/div>\n                \n                <div  class=\"collapsible-button btn h-11\">\n                    <img decoding=\"async\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/plugins\/collapsible-table-shortcode\/plus.svg\" \/>\n                    Expand\n                <\/div>\n\n                <div  class=\"collapsible-button btn h-11 hidden\">\n                     <img decoding=\"async\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/plugins\/collapsible-table-shortcode\/minus.svg\" \/>\n                    Collapse\n                <\/div>\n\n            <\/div>\n\n            <div class=\"collapsible-area transition-all overflow-y-hidden min-h-40 h-40 relative\">\n\n                <div class=\"collapsible-content border-y p-4 \">\n                    <\/p>\n<table class=\"table-rev\" style=\"background-color: #fff;\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\"><strong>AI Humanizer<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>Test Result<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>Proof<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Humanize.ai<\/strong><br \/>\n(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Humanize-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.txt\" target=\"_blank\" rel=\"noopener\">humanized text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>10% AI<\/strong><\/p>\n<p>\u274c<\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Humanize-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1868\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Humanize-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x311.png\" alt=\"\" width=\"550\" height=\"311\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Humanize-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x311.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Humanize-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1024x579.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Humanize-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-768x434.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Humanize-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1536x868.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Humanize-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-2048x1158.png 2048w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Humanize-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-600x338.png 600w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Humanize-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-860x484.png 860w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>StealthGPT<\/strong><br \/>\n(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthGPT-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.txt\" target=\"_blank\" rel=\"noopener\">humanized text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>23% AI<\/strong><\/p>\n<p>\u274c<\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthGPT-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1895\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthGPT-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x281.png\" alt=\"\" width=\"550\" height=\"281\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthGPT-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x281.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthGPT-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1024x522.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthGPT-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-768x392.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthGPT-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1536x784.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthGPT-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-2048x1045.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>WriteHuman.ai<\/strong><br \/>\n(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/WriteHuman-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.txt\" target=\"_blank\" rel=\"noopener\">humanized text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>0% AI<\/strong><\/p>\n<p>\u274c<\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/WriteHuman-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1888\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/WriteHuman-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x309.png\" alt=\"\" width=\"550\" height=\"309\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/WriteHuman-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x309.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/WriteHuman-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1024x574.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/WriteHuman-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-768x431.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/WriteHuman-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1536x862.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/WriteHuman-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-2048x1149.png 2048w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/WriteHuman-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-600x338.png 600w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/WriteHuman-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-860x484.png 860w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Undetectable.ai<\/strong><br \/>\n(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Undetectable-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.txt\" target=\"_blank\" rel=\"noopener\">humanized text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>92% AI<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u2705<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Undetectable-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1874\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Undetectable-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x310.png\" alt=\"\" width=\"550\" height=\"310\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Undetectable-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x310.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Undetectable-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1024x578.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Undetectable-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-768x433.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Undetectable-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1536x866.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Undetectable-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-2048x1155.png 2048w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Undetectable-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-600x338.png 600w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Undetectable-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-860x484.png 860w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>StealthWriter.ai<\/strong><br \/>\n(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthWriter-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.txt\" target=\"_blank\" rel=\"noopener\">humanized text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>0% AI<\/strong><\/p>\n<p>\u274c<\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthWriter-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1876\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthWriter-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x312.png\" alt=\"\" width=\"550\" height=\"312\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthWriter-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x312.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthWriter-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1024x580.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthWriter-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-768x435.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthWriter-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1536x870.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthWriter-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-2048x1160.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>WalterWrites.ai<\/strong><br \/>\n(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Walter-Writes-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.txt\" target=\"_blank\" rel=\"noopener\">humanized text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>0% AI<\/strong><\/p>\n<p>\u274c<\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Walter-Writes-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1878\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Walter-Writes-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x310.png\" alt=\"\" width=\"550\" height=\"310\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Walter-Writes-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x310.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Walter-Writes-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1024x576.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Walter-Writes-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-768x432.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Walter-Writes-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1536x865.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Walter-Writes-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-2048x1153.png 2048w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Walter-Writes-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-600x338.png 600w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Walter-Writes-AI-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-860x484.png 860w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Grammarly<\/strong><br \/>\n(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grammarly-Text-about-the-Amazon-Rainforest-QuillBot-Test.txt\" target=\"_blank\" rel=\"noopener\">humanized text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>27% AI<\/strong><\/p>\n<p>\u274c<\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grammarly-Text-about-the-Amazon-Rainforest-QuillBot-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1882\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grammarly-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x310.png\" alt=\"\" width=\"550\" height=\"310\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grammarly-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x310.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grammarly-Text-about-the-Amazon-Rainforest-QuillBot-Test-1024x578.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grammarly-Text-about-the-Amazon-Rainforest-QuillBot-Test-768x434.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grammarly-Text-about-the-Amazon-Rainforest-QuillBot-Test-1536x867.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grammarly-Text-about-the-Amazon-Rainforest-QuillBot-Test-2048x1156.png 2048w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grammarly-Text-about-the-Amazon-Rainforest-QuillBot-Test-600x338.png 600w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grammarly-Text-about-the-Amazon-Rainforest-QuillBot-Test-860x484.png 860w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Celver AI Humanizer<\/strong><br \/>\n(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Clever-AI-Humanizer-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.txt\" target=\"_blank\" rel=\"noopener\">humanized text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>32% AI<\/strong><\/p>\n<p>\u274c<\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Clever-AI-Humanizer-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1884\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Clever-AI-Humanizer-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x312.png\" alt=\"\" width=\"550\" height=\"312\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Clever-AI-Humanizer-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-550x312.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Clever-AI-Humanizer-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1024x580.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Clever-AI-Humanizer-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-768x435.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Clever-AI-Humanizer-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-1536x870.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Clever-AI-Humanizer-Generated-Text-about-the-Amazon-Rainforest-QuillBot-Test-2048x1160.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>                <\/div>\n\n                <div class=\"collapsible-footer p-2 flex justify-end items-start\">\n                    <div class=\"collapsible-button btn h-11 hidden\">\n                        <img decoding=\"async\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/plugins\/collapsible-table-shortcode\/minus.svg\" \/>\n                        Collapse\n                    <\/div>\n                <\/div>\n\n                <div class=\"collapsible-dimmer absolute bottom-0 rounded-md w-full h-28 bg-gradient-to-t from-white to-transparent\"><\/div>\n\n            <\/div>\n        <\/div>\n\n        \n<h2 id=\"Testing_FalsePositives\"><span style=\"text-decoration: underline;\">Test #3: False-Positives + Plagiarism<\/span><\/h2>\n<div class=\"alert alert-success\" role=\"alert\"><b>Passed (1 False Positive) <\/b>&#8211; Human-written texts were correctly identified as 100% human (or 0% AI) in <strong>9 of 10 tests<\/strong>. During <span style=\"text-decoration: underline;\">plagiarism testing<\/span>, QuillBot detected copied content <strong>7 out of 10 times<\/strong>.<\/div>\n<p>To complete our testing, we checked whether QuillBot would mistake original, human-written articles for AI. We also tested the same content using QuillBot&#8217;s plagiarism detector and posted all the results below.<br \/>\n\n        <div class=\"shortcode_wrapper collapsible collapsible-collapsed border rounded-md\">\n            <div class=\"collapsible-header p-2 flex justify-between items-start gap-4\">\n\n                                    <div class=\"text-lg font-bold self-center\">\n                        Test Results                    <\/div>\n                \n                <div  class=\"collapsible-button btn h-11\">\n                    <img decoding=\"async\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/plugins\/collapsible-table-shortcode\/plus.svg\" \/>\n                    Expand\n                <\/div>\n\n                <div  class=\"collapsible-button btn h-11 hidden\">\n                     <img decoding=\"async\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/plugins\/collapsible-table-shortcode\/minus.svg\" \/>\n                    Collapse\n                <\/div>\n\n            <\/div>\n\n            <div class=\"collapsible-area transition-all overflow-y-hidden min-h-40 h-40 relative\">\n\n                <div class=\"collapsible-content border-y p-4 \">\n                    <\/p>\n<table class=\"table-rev\" style=\"background-color: #fff;\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\">Article URL<\/td>\n<td style=\"text-align: center;\"><strong>Test Result<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>AI Detector<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>Plagiarism<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>The Gift of the Magi<\/strong><\/p>\n<p>(<a href=\"https:\/\/americanliterature.com\/author\/o-henry\/short-story\/the-gift-of-the-magi\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>100% Human, 77% Plagiarism<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u2705<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Gift-of-the-Magi-QuillBot-False-Positive-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1567\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Gift-of-the-Magi-QuillBot-False-Positive-Test-550x308.png\" alt=\"\" width=\"550\" height=\"308\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Gift-of-the-Magi-QuillBot-False-Positive-Test-550x308.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Gift-of-the-Magi-QuillBot-False-Positive-Test-1024x574.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Gift-of-the-Magi-QuillBot-False-Positive-Test-768x431.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Gift-of-the-Magi-QuillBot-False-Positive-Test-1536x861.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Gift-of-the-Magi-QuillBot-False-Positive-Test-2048x1148.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Gift-of-the-Magi-QuillBot-Plagiarism-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1570\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Gift-of-the-Magi-QuillBot-Plagiarism-Test-550x303.png\" alt=\"\" width=\"550\" height=\"303\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Gift-of-the-Magi-QuillBot-Plagiarism-Test-550x303.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Gift-of-the-Magi-QuillBot-Plagiarism-Test-1024x563.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Gift-of-the-Magi-QuillBot-Plagiarism-Test-768x422.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Gift-of-the-Magi-QuillBot-Plagiarism-Test-1536x845.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Gift-of-the-Magi-QuillBot-Plagiarism-Test-2048x1126.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>The Guardian (opinion piece)<\/strong><\/p>\n<p>(<a href=\"https:\/\/www.theguardian.com\/commentisfree\/2026\/apr\/22\/trump-gas-prices-iran-war\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>100% Human, 78% Plagiarism<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u2705<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Guardian-QuillBot-False-Positive-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1572\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Guardian-QuillBot-False-Positive-Test-550x306.png\" alt=\"\" width=\"550\" height=\"306\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Guardian-QuillBot-False-Positive-Test-550x306.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Guardian-QuillBot-False-Positive-Test-1024x570.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Guardian-QuillBot-False-Positive-Test-768x428.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Guardian-QuillBot-False-Positive-Test-1536x855.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Guardian-QuillBot-False-Positive-Test-2048x1140.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Guardian-QuillBot-Plagiarism-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1573\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Guardian-QuillBot-Plagiarism-Test-550x302.png\" alt=\"\" width=\"550\" height=\"302\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Guardian-QuillBot-Plagiarism-Test-550x302.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Guardian-QuillBot-Plagiarism-Test-1024x562.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Guardian-QuillBot-Plagiarism-Test-768x421.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Guardian-QuillBot-Plagiarism-Test-1536x842.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/The-Guardian-QuillBot-Plagiarism-Test-2048x1123.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>CNBC (article)<\/strong><\/p>\n<p>(<a href=\"https:\/\/www.cnbc.com\/2026\/04\/22\/tesla-tsla-q1-2026-earnings-report.html\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>100% Human, 92% Plagiarism<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u2705<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/CNBC-QuillBot-False-Positive-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1574\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/CNBC-QuillBot-False-Positive-Test-550x310.png\" alt=\"\" width=\"550\" height=\"310\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/CNBC-QuillBot-False-Positive-Test-550x310.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/CNBC-QuillBot-False-Positive-Test-1024x578.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/CNBC-QuillBot-False-Positive-Test-768x434.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/CNBC-QuillBot-False-Positive-Test-1536x867.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/CNBC-QuillBot-False-Positive-Test-2048x1156.png 2048w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/CNBC-QuillBot-False-Positive-Test-600x338.png 600w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/CNBC-QuillBot-False-Positive-Test-860x484.png 860w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/CNBC-QuillBot-Plagiarism-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1575\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/CNBC-QuillBot-Plagiarism-Test-550x303.png\" alt=\"\" width=\"550\" height=\"303\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/CNBC-QuillBot-Plagiarism-Test-550x303.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/CNBC-QuillBot-Plagiarism-Test-1024x564.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/CNBC-QuillBot-Plagiarism-Test-768x423.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/CNBC-QuillBot-Plagiarism-Test-1536x845.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/CNBC-QuillBot-Plagiarism-Test-2048x1127.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Wikipedia (&#8220;shoehorn<span style=\"font-family: inherit; font-size: inherit;\">&#8220;)<\/span><\/strong><\/p>\n<p>(<a href=\"https:\/\/en.wikipedia.org\/wiki\/Shoehorn\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>100% Human, 98% Plagiarism<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u2705<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-QuillBot-False-Positive-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1577\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-QuillBot-False-Positive-Test-550x310.png\" alt=\"\" width=\"550\" height=\"310\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-QuillBot-False-Positive-Test-550x310.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-QuillBot-False-Positive-Test-1024x578.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-QuillBot-False-Positive-Test-768x433.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-QuillBot-False-Positive-Test-1536x866.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-QuillBot-False-Positive-Test-2048x1155.png 2048w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-QuillBot-False-Positive-Test-600x338.png 600w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-QuillBot-False-Positive-Test-860x484.png 860w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-QuillBot-Plagiarism-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1576\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-QuillBot-Plagiarism-Test-550x308.png\" alt=\"\" width=\"550\" height=\"308\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-QuillBot-Plagiarism-Test-550x308.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-QuillBot-Plagiarism-Test-1024x573.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-QuillBot-Plagiarism-Test-768x430.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-QuillBot-Plagiarism-Test-1536x860.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-QuillBot-Plagiarism-Test-2048x1146.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>IvyPanda (research paper)<\/strong><\/p>\n<p>(<a href=\"https:\/\/ivypanda.com\/essays\/chocolate\/\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>100% Human, 95% Plagiarism<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u2705<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/IvyPanda-QuillBot-False-Positive-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1578\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/IvyPanda-QuillBot-False-Positive-Test-550x310.png\" alt=\"\" width=\"550\" height=\"310\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/IvyPanda-QuillBot-False-Positive-Test-550x310.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/IvyPanda-QuillBot-False-Positive-Test-1024x577.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/IvyPanda-QuillBot-False-Positive-Test-768x433.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/IvyPanda-QuillBot-False-Positive-Test-1536x865.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/IvyPanda-QuillBot-False-Positive-Test-2048x1154.png 2048w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/IvyPanda-QuillBot-False-Positive-Test-600x338.png 600w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/IvyPanda-QuillBot-False-Positive-Test-860x484.png 860w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/IvyPanda-QuillBot-Plagiarism-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1579\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/IvyPanda-QuillBot-Plagiarism-Test-550x302.png\" alt=\"\" width=\"550\" height=\"302\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/IvyPanda-QuillBot-Plagiarism-Test-550x302.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/IvyPanda-QuillBot-Plagiarism-Test-1024x563.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/IvyPanda-QuillBot-Plagiarism-Test-768x422.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/IvyPanda-QuillBot-Plagiarism-Test-1536x844.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/IvyPanda-QuillBot-Plagiarism-Test-2048x1126.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Financial Readiness (article)<\/strong><\/p>\n<p>(<a href=\"https:\/\/finred.usalearning.gov\/Trending\/Blog\/FoundMoney\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>41% Human, 36% Plagiarism<\/strong><\/p>\n<p>\u274c<\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Financial-Readiness-QuillBot-False-Positive-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1580\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Financial-Readiness-QuillBot-False-Positive-Test-550x313.png\" alt=\"\" width=\"550\" height=\"313\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Financial-Readiness-QuillBot-False-Positive-Test-550x313.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Financial-Readiness-QuillBot-False-Positive-Test-1024x582.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Financial-Readiness-QuillBot-False-Positive-Test-768x437.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Financial-Readiness-QuillBot-False-Positive-Test-1536x873.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Financial-Readiness-QuillBot-False-Positive-Test-2048x1164.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Financial-Readiness-QuillBot-Plagiarism-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1581\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Financial-Readiness-QuillBot-Plagiarism-Test-550x301.png\" alt=\"\" width=\"550\" height=\"301\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Financial-Readiness-QuillBot-Plagiarism-Test-550x301.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Financial-Readiness-QuillBot-Plagiarism-Test-1024x561.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Financial-Readiness-QuillBot-Plagiarism-Test-768x421.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Financial-Readiness-QuillBot-Plagiarism-Test-1536x842.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Financial-Readiness-QuillBot-Plagiarism-Test-2048x1122.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Aeon.co (essay)<\/strong><\/p>\n<p>(<a href=\"https:\/\/aeon.co\/essays\/lessons-from-the-fairness-of-african-fractal-societies\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>100% Human, 1% Plagiarism<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u2705<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Aeon-QuillBot-False-Positive-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1599\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Aeon-QuillBot-False-Positive-Test-550x312.png\" alt=\"\" width=\"550\" height=\"312\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Aeon-QuillBot-False-Positive-Test-550x312.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Aeon-QuillBot-False-Positive-Test-1024x580.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Aeon-QuillBot-False-Positive-Test-768x435.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Aeon-QuillBot-False-Positive-Test-1536x870.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Aeon-QuillBot-False-Positive-Test-2048x1160.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Aeon-QuillBot-Plagiarism-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1600\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Aeon-QuillBot-Plagiarism-Test-550x303.png\" alt=\"\" width=\"550\" height=\"303\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Aeon-QuillBot-Plagiarism-Test-550x303.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Aeon-QuillBot-Plagiarism-Test-1024x563.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Aeon-QuillBot-Plagiarism-Test-768x422.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Aeon-QuillBot-Plagiarism-Test-1536x845.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Aeon-QuillBot-Plagiarism-Test-2048x1126.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Discover Magazine (article)<\/strong><\/p>\n<p>(<a href=\"https:\/\/www.discovermagazine.com\/ten-thousand-years-of-solitude-1727\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>100% Human, 23% Plagiarism<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u2705<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Discover-Magazine-QuillBot-False-Positive-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1607\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Discover-Magazine-QuillBot-False-Positive-Test-550x312.png\" alt=\"\" width=\"550\" height=\"312\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Discover-Magazine-QuillBot-False-Positive-Test-550x312.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Discover-Magazine-QuillBot-False-Positive-Test-1024x581.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Discover-Magazine-QuillBot-False-Positive-Test-768x436.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Discover-Magazine-QuillBot-False-Positive-Test-1536x871.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Discover-Magazine-QuillBot-False-Positive-Test-2048x1162.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Discover-Magazine-QuillBot-Plagiarism-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1606\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Discover-Magazine-QuillBot-Plagiarism-Test-550x302.png\" alt=\"\" width=\"550\" height=\"302\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Discover-Magazine-QuillBot-Plagiarism-Test-550x302.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Discover-Magazine-QuillBot-Plagiarism-Test-1024x562.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Discover-Magazine-QuillBot-Plagiarism-Test-768x421.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Discover-Magazine-QuillBot-Plagiarism-Test-1536x842.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Discover-Magazine-QuillBot-Plagiarism-Test-2048x1123.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>UPenn (academic writing)<\/strong><\/p>\n<p>(<a href=\"https:\/\/writing.upenn.edu\/~taransky\/Barthes.pdf\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>100% Human, 93% Plagiarism<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u2705<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/UPenn-QuillBot-False-Positive-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1621\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/UPenn-QuillBot-False-Positive-Test-550x310.png\" alt=\"\" width=\"550\" height=\"310\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/UPenn-QuillBot-False-Positive-Test-550x310.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/UPenn-QuillBot-False-Positive-Test-1024x578.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/UPenn-QuillBot-False-Positive-Test-768x433.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/UPenn-QuillBot-False-Positive-Test-1536x866.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/UPenn-QuillBot-False-Positive-Test-2048x1155.png 2048w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/UPenn-QuillBot-False-Positive-Test-600x338.png 600w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/UPenn-QuillBot-False-Positive-Test-860x484.png 860w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Upenn-QuillBot-Plagiarism-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1619\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Upenn-QuillBot-Plagiarism-Test-550x303.png\" alt=\"\" width=\"550\" height=\"303\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Upenn-QuillBot-Plagiarism-Test-550x303.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Upenn-QuillBot-Plagiarism-Test-1024x565.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Upenn-QuillBot-Plagiarism-Test-768x424.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Upenn-QuillBot-Plagiarism-Test-1536x847.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Upenn-QuillBot-Plagiarism-Test-2048x1130.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Northwestern Mutual (article)<\/strong><\/p>\n<p>(<a href=\"https:\/\/www.northwesternmutual.com\/life-and-money\/how-does-a-roth-ira-grow\/\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>100% Human, 94% Plagiarism<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u2705<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Northwestern-Mutual-QuillBot-False-Positive-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1622\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Northwestern-Mutual-QuillBot-False-Positive-Test-550x312.png\" alt=\"\" width=\"550\" height=\"312\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Northwestern-Mutual-QuillBot-False-Positive-Test-550x312.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Northwestern-Mutual-QuillBot-False-Positive-Test-1024x581.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Northwestern-Mutual-QuillBot-False-Positive-Test-768x436.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Northwestern-Mutual-QuillBot-False-Positive-Test-1536x871.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Northwestern-Mutual-QuillBot-False-Positive-Test-2048x1162.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Northwestern-Mutual-QuillBot-Plagiarism-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1623\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Northwestern-Mutual-QuillBot-Plagiarism-Test-550x303.png\" alt=\"\" width=\"550\" height=\"303\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Northwestern-Mutual-QuillBot-Plagiarism-Test-550x303.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Northwestern-Mutual-QuillBot-Plagiarism-Test-1024x563.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Northwestern-Mutual-QuillBot-Plagiarism-Test-768x422.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Northwestern-Mutual-QuillBot-Plagiarism-Test-1536x845.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Northwestern-Mutual-QuillBot-Plagiarism-Test-2048x1126.png 2048w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>                <\/div>\n\n                <div class=\"collapsible-footer p-2 flex justify-end items-start\">\n                    <div class=\"collapsible-button btn h-11 hidden\">\n                        <img decoding=\"async\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/plugins\/collapsible-table-shortcode\/minus.svg\" \/>\n                        Collapse\n                    <\/div>\n                <\/div>\n\n                <div class=\"collapsible-dimmer absolute bottom-0 rounded-md w-full h-28 bg-gradient-to-t from-white to-transparent\"><\/div>\n\n            <\/div>\n        <\/div>\n\n        <\/p>\n<div class=\"alert alert-success\" role=\"alert\">\n<h2><strong>Is QuillBot Accurate?<\/strong><\/h2>\n<p>Our testing showed that QuillBot was not very accurate at detecting AI-generated content, though most user reviews on Trustpilot suggest a different experience; <strong>85% of its 11K+ reviews are 5 stars<\/strong>.<\/p>\n<p>Many praise QuillBot as an effective writing assistant thanks to its paraphraser and grammar checker. Users also report positive experiences with its overall ease of use.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1604\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Trustpilot-QuillBot-550x110.png\" alt=\"\" width=\"550\" height=\"110\" data-wp-editing=\"1\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Trustpilot-QuillBot-550x110.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Trustpilot-QuillBot-1024x205.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Trustpilot-QuillBot-768x154.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Trustpilot-QuillBot-1536x307.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Trustpilot-QuillBot.png 1816w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/p>\n<\/div>\n<p><span style=\"text-decoration-line: underline; font-family: inherit; font-size: 35px; font-style: inherit;\">Frequently Asked Questions<\/span><\/p>\n<h3><strong>Do unused plagiarism words carry over?<\/strong><\/h3>\n<p><strong>No<\/strong>, unused words from the plagiarism checker do not carry over and reset each billing cycle. However, any additional words purchased separately will carry over until used.<a href=\"#source-2\"><sup>[2]<\/sup><\/a><\/p>\n<hr \/>\n<h3><strong>Are sentence-by-sentence breakdowns provided?<\/strong><\/h3>\n<p><strong>Yes<\/strong>, QuillBot breaks down sentences using two highlight colors: peach for content likely generated by AI and blue for content likely written by a human and altered by AI. It also provides a probability score to show how confident it is in its detection (<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/QuillBot-Sentence-Breakdown.png\" target=\"_blank\" rel=\"noopener\">see image<\/a>).<\/p>\n<hr \/>\n<h3><strong>Is document scanning allowed?<\/strong><\/h3>\n<p><strong>Yes<\/strong>, QuillBot\u2019s AI detector scans PDF and DOCX files, while its plagiarism checker supports those formats plus TXT files.<\/p>\n<hr \/>\n<h3><strong>Is image scanning provided?<\/strong><\/h3>\n<p><strong>Yes<\/strong>, it&#8217;s possible to scan JPEG, PNG, GIF, and WebP images (maximum of 10 MB per file).<\/p>\n<hr \/>\n<h3><strong>Are reports shareable?<\/strong><\/h3>\n<p><strong>Yes<\/strong>, users can generate a shareable link that <em>anyone <\/em>can access to view results. Reports can also be downloaded as PDFs and shared as files.<a href=\"#source-3\"><sup>[3]<\/sup><\/a><\/p>\n<hr \/>\n<h3><strong>Does QuillBot provide certifications?<\/strong><\/h3>\n<p><strong>No<\/strong>, reports are not &#8220;certified&#8221; per se, though shareable links do include a green badge indicating that content has been checked for AI detection (<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/QuillBot-Certificate.png\" target=\"_blank\" rel=\"noopener\">see image<\/a>).<\/p>\n<hr \/>\n<h3><strong>Are AI detections used for internal training?<\/strong><\/h3>\n<p><strong>Yes<\/strong>, detection data is used to train AI models and personalize services. To opt out, users can change their settings in the <strong>Data and Privacy<\/strong> menu.<a href=\"#source-4\"><sup>[4]<\/sup><\/a><\/p>\n<hr \/>\n<div class=\"alert alert-secondary\">\n<h2><span style=\"text-decoration: underline;\">Sources<\/span><\/h2>\n<ol>\n<li><a id=\"source-1\" href=\"https:\/\/quillbot.com\/about\" target=\"_blank\" rel=\"noopener\">https:\/\/quillbot.com\/about<\/a><\/li>\n<li><a id=\"source-2\" href=\"https:\/\/help.quillbot.com\/hc\/en-us\/articles\/35902665345431-Do-my-unused-words-carry-over-to-the-next-month-in-QuillBot-s-Plagiarism-Checker\" target=\"_blank\" rel=\"noopener\">https:\/\/help.quillbot.com\/hc\/en-us\/articles\/35902665345431-Do-my-unused-words-carry-over-to-the-next-month-in-QuillBot-s-Plagiarism-Checker<\/a><\/li>\n<li><a id=\"source-3\" href=\"https:\/\/help.quillbot.com\/hc\/en-us\/articles\/35295898594967-How-to-share-an-AI-Detector-report\" target=\"_blank\" rel=\"noopener\">https:\/\/help.quillbot.com\/hc\/en-us\/articles\/35295898594967-How-to-share-an-AI-Detector-report<\/a><\/li>\n<li><a id=\"source-4\" href=\"https:\/\/help.quillbot.com\/hc\/en-us\/articles\/360056530894-How-does-QuillBot-use-my-data\" target=\"_blank\" rel=\"noopener\">https:\/\/help.quillbot.com\/hc\/en-us\/articles\/360056530894-How-does-QuillBot-use-my-data<\/a><\/li>\n<\/ol>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>QuillBot\u00a0(quillbot.com) is a writing assistant and AI detector that launched in 2017.[1] It initially offered only a paraphrasing tool, but now provides plagiarism and grammar checkers, a humanizer, and AI detectors for both text and images. While QuillBot is known as a powerful writing aid, we primarily tested its AI detector to see how well &#8230; <a title=\"QuillBot Review\" class=\"read-more\" href=\"https:\/\/aidetector.com\/blog\/quillbot\/\" aria-label=\"Read more about QuillBot Review\">Read more<\/a><\/p>\n","protected":false},"author":7,"featured_media":1844,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"editor_rating":"2","footnotes":""},"class_list":["post-1219","page","type-page","status-publish","has-post-thumbnail"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>QuillBot Review | Accuracy Report<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aidetector.com\/blog\/quillbot\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"QuillBot Review | Accuracy Report\" \/>\n<meta property=\"og:description\" content=\"QuillBot\u00a0(quillbot.com) is a writing assistant and AI detector that launched in 2017.[1] It initially offered only a paraphrasing tool, but now provides plagiarism and grammar checkers, a humanizer, and AI detectors for both text and images. While QuillBot is known as a powerful writing aid, we primarily tested its AI detector to see how well ... 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