{"id":1897,"date":"2026-05-06T23:20:53","date_gmt":"2026-05-06T23:20:53","guid":{"rendered":"https:\/\/aidetector.com\/blog\/?page_id=1897"},"modified":"2026-05-12T17:33:22","modified_gmt":"2026-05-12T17:33:22","slug":"undetectable-ai","status":"publish","type":"page","link":"https:\/\/aidetector.com\/blog\/undetectable-ai\/","title":{"rendered":"Undetectable AI Review"},"content":{"rendered":"<div id=\"toc_custom\"><p><strong>Undetectable AI<\/strong> (<a href=\"https:\/\/undetectable.ai\/\" target=\"_blank\" rel=\"noopener\">undetectable.ai<\/a>) is an AI detection and content rewriting platform that first released in early 2023. It&#8217;s best known for its humanizer, which modifies AI-generated text to sound more natural and less detectable by AI scanners. The company even offers refunds if content generated with its tool fails to bypass AI detection.<a href=\"#source-1\"><sup>[1]<\/sup><\/a><\/p>\n<p>In addition to the humanizer, Undetectable AI provides various tools for students, teachers, and businesses, including the AI detector featured in this review.<\/p>\n<div class=\"pros-cons-colored\">\n<div class=\"pros-box\">\n<h4 id=\"Pros\">Pros<\/h4>\n<ul>\n<li><strong>Free AI detections\u00a0<\/strong>with no sign-up.<\/li>\n<li><strong>Passed 6 of 7<\/strong> AI detection tests.<\/li>\n<li><strong>Passed 9 of 10<\/strong> false-positive tests.<\/li>\n<li>Free trials and business discounts available.<\/li>\n<\/ul>\n<\/div>\n<div class=\"cons-box\">\n<h4 id=\"Cons\">Cons<\/h4>\n<ul>\n<li><strong>6 of 8 humanized texts<\/strong> bypassed detection.<\/li>\n<li>It&#8217;s unclear which features each plan includes.<\/li>\n<li>Annual subscribers receive fewer monthly credits.<\/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>: Flags AI in text, image, video, or voice.<\/li>\n<li><strong>Chatbot<\/strong>: Answers questions with human-like responses.<\/li>\n<li><strong>SEO writer<\/strong>: Generates content designed to rank well online.<\/li>\n<li><strong>Career tools<\/strong>: Includes a resume generator and AI job applier.<\/li>\n<li><strong>Writing aids<\/strong>: Grammar checker, word counter, and paraphraser.<\/li>\n<li><strong>Bulk scan<\/strong>: Looks for AI in multiple URLs or documents at once.<\/li>\n<li><strong>YouTube transcriber<\/strong>: Creates text from speech in YouTube videos.<\/li>\n<li><strong>Translator<\/strong>: Supports more than 20 languages.<\/li>\n<li><strong>Chrome extension<\/strong> <a href=\"https:\/\/chromewebstore.google.com\/detail\/undetectable-ai-your-ai-t\/gbeiplkijfihbcieiihmeemjejohbiho?pli=1\" 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>API<\/strong> <a href=\"https:\/\/undetectable.ai\/develop\" 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<p>Undetectable AI offers three primary plans, each providing access to the <strong>same full set of AI tools<\/strong>. The main difference between plans is the number of words (credits) included per month.<\/p>\n<table class=\"table-rev\" style=\"background-color: #fff;\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\"><strong>Cheapest\u00a0<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>Mid-Price<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>Most Expensive<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">$19\/month or $60\/year<\/td>\n<td style=\"text-align: center;\">$31\/month or $114\/year<\/td>\n<td style=\"text-align: center;\">$42\/month or $189\/year<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">20,000 words\/month or 10,000 if billed annually<\/td>\n<td style=\"text-align: center;\">35,000 words\/month or 20,000 if billed annually<\/td>\n<td style=\"text-align: center;\">50,000 words\/month or 35,000 if billed annually<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>Basic versions of most tools, including the AI detector, are available to users free of charge.<\/em><\/p>\n<p>Undetectable AI also\u00a0<span style=\"box-sizing: border-box; margin: 0px; padding: 0px;\">has a <strong>business plan<\/strong> with customized pricing and features, non-expiring credits, priority support, access to the smart job applier, and white-label solutions.<\/span><\/p>\n<div class=\"alert alert-secondary\">\n<p><strong><span style=\"text-decoration: underline;\">Credit Values<\/span><\/strong><\/p>\n<p>AI detection scans are free and can be performed without spending credits. For AI content generation tools (e.g., humanizer, SEO writer), each submitted word counts as 1 credit.<\/p>\n<\/div>\n<h2><span style=\"text-decoration: underline;\">Test #1: Undetectable AI vs. LLMs<\/span><\/h2>\n<div class=\"alert alert-success\"><strong>6\/7 Tests Passed <\/strong>&#8211; Undetectable AI was able to spot non-human writing in <span style=\"text-decoration: underline;\">all but one AI-generated text<\/span>.<\/div>\n<p>The goal of our first test was to assess how accurately Undetectable AI could identify content written entirely by an LLM.<\/p>\n<p>Using the prompt below, we had several LLMs generate 500-word articles. The resulting texts were then scanned with the AI detector to see if the unmodified LLM-generated writing would be flagged as AI.<\/p>\n<p><span style=\"text-decoration: underline;\">Prompt Used<\/span><\/p>\n<blockquote>\n<p data-pm-slice=\"1 1 []\">&#8220;Please compose an article about the RMS Titanic that uses only factual information and is 500 words in length. Write in a natural, human-like style to help avoid AI detection, and do not use em dashes.&#8221;<\/p>\n<\/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; 5.2 Thinking Model<\/b><\/p>\n<p>(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/ChatGPT-5.4-Generated-Text-About-the-Titanic-Undetectable-AI-Test.txt\" target=\"_blank\" rel=\"noopener\">generated text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>82% 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-Titanic-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1925\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/ChatGPT-5.4-Generated-Text-About-the-Titanic-Undetectable-AI-Test-550x412.png\" alt=\"\" width=\"550\" height=\"412\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/ChatGPT-5.4-Generated-Text-About-the-Titanic-Undetectable-AI-Test-550x412.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/ChatGPT-5.4-Generated-Text-About-the-Titanic-Undetectable-AI-Test-1024x767.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/ChatGPT-5.4-Generated-Text-About-the-Titanic-Undetectable-AI-Test-768x575.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/ChatGPT-5.4-Generated-Text-About-the-Titanic-Undetectable-AI-Test.png 1429w\" 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 Extended<\/strong><\/p>\n<p>(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Claude-Sonnet-4.6-Generated-Text-About-the-Titanic-Undetectable-AI-Test.txt\" target=\"_blank\" rel=\"noopener\">generated text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>88% 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\/Claude-Sonnet-4.6-Generated-Text-About-the-Titanic-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1929\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Claude-Sonnet-4.6-Generated-Text-About-the-Titanic-Undetectable-AI-Test-550x401.png\" alt=\"\" width=\"550\" height=\"401\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Claude-Sonnet-4.6-Generated-Text-About-the-Titanic-Undetectable-AI-Test-550x401.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Claude-Sonnet-4.6-Generated-Text-About-the-Titanic-Undetectable-AI-Test-1024x747.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Claude-Sonnet-4.6-Generated-Text-About-the-Titanic-Undetectable-AI-Test-768x560.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Claude-Sonnet-4.6-Generated-Text-About-the-Titanic-Undetectable-AI-Test.png 1427w\" 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-Titanic-Undetectable-AI-Test.txt\" target=\"_blank\" rel=\"noopener\">generated text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>68% 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-Titanic-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1931\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Google-Gemini-Generated-Text-About-the-Titanic-Undetectable-AI-Test-550x400.png\" alt=\"\" width=\"550\" height=\"400\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Google-Gemini-Generated-Text-About-the-Titanic-Undetectable-AI-Test-550x400.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Google-Gemini-Generated-Text-About-the-Titanic-Undetectable-AI-Test-1024x745.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Google-Gemini-Generated-Text-About-the-Titanic-Undetectable-AI-Test-768x559.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Google-Gemini-Generated-Text-About-the-Titanic-Undetectable-AI-Test.png 1425w\" 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-Titanic-Undetectable-AI-Test.txt\" target=\"_blank\" rel=\"noopener\">generated text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>86% 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\/DeepSeek-Generated-Text-About-the-Titanic-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1933\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/DeepSeek-Generated-Text-About-the-Titanic-Undetectable-AI-Test-550x418.png\" alt=\"\" width=\"550\" height=\"418\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/DeepSeek-Generated-Text-About-the-Titanic-Undetectable-AI-Test-550x418.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/DeepSeek-Generated-Text-About-the-Titanic-Undetectable-AI-Test-1024x778.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/DeepSeek-Generated-Text-About-the-Titanic-Undetectable-AI-Test-768x583.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/DeepSeek-Generated-Text-About-the-Titanic-Undetectable-AI-Test.png 1427w\" 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-Titanic-Undetectable-AI-Test.txt\" target=\"_blank\" rel=\"noopener\">generated text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>99% 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-Titanic-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1935\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Perplexity-Generated-Text-About-the-Titanic-Undetectable-AI-Test-550x406.png\" alt=\"\" width=\"550\" height=\"406\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Perplexity-Generated-Text-About-the-Titanic-Undetectable-AI-Test-550x406.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Perplexity-Generated-Text-About-the-Titanic-Undetectable-AI-Test-1024x756.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Perplexity-Generated-Text-About-the-Titanic-Undetectable-AI-Test-768x567.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Perplexity-Generated-Text-About-the-Titanic-Undetectable-AI-Test.png 1426w\" 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-Titanic-Undetectable-AI-Test.txt\" target=\"_blank\" rel=\"noopener\">generated text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>67% 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\/Grok-Generated-Text-About-the-Titanic-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1937\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grok-Generated-Text-About-the-Titanic-Undetectable-AI-Test-550x409.png\" alt=\"\" width=\"550\" height=\"409\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grok-Generated-Text-About-the-Titanic-Undetectable-AI-Test-550x409.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grok-Generated-Text-About-the-Titanic-Undetectable-AI-Test-1024x762.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grok-Generated-Text-About-the-Titanic-Undetectable-AI-Test-768x572.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grok-Generated-Text-About-the-Titanic-Undetectable-AI-Test.png 1417w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Meta<\/strong><\/p>\n<p>(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Meta-Generated-Text-About-the-Titanic-Undetectable-AI-Test.txt\" target=\"_blank\" rel=\"noopener\">generated text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>44% 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\/Meta-Generated-Text-About-the-Titanic-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1939\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Meta-Generated-Text-About-the-Titanic-Undetectable-AI-Test-550x410.png\" alt=\"\" width=\"550\" height=\"410\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Meta-Generated-Text-About-the-Titanic-Undetectable-AI-Test-550x410.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Meta-Generated-Text-About-the-Titanic-Undetectable-AI-Test-1024x763.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Meta-Generated-Text-About-the-Titanic-Undetectable-AI-Test-768x573.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Meta-Generated-Text-About-the-Titanic-Undetectable-AI-Test.png 1419w\" 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: Undetectable AI vs. Humanizers<\/span><\/h2>\n<div class=\"alert alert-danger\"><strong>2\/8 Tests Passed\u00a0<\/strong>&#8211; Humanized content posed a challenge for Undetectable AI, which identified AI material with accuracy in only <span style=\"text-decoration: underline;\">2 of the 8 texts<\/span>.<\/div>\n<p>This part of our evaluation involved processing the <a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/ChatGPT-5.4-Generated-Text-About-the-Titanic-Undetectable-AI-Test.txt\" target=\"_blank\" rel=\"noopener\">ChatGPT-generated text<\/a> from Test #1 through the eight humanizers listed below. Each resulting text was then scanned with Undetectable AI to determine whether the humanized versions would evade detection.<\/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-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.txt\" target=\"_blank\" rel=\"noopener\">humanized text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>39% 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\/Humanize-AI-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1981\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Humanize-AI-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-550x409.png\" alt=\"\" width=\"550\" height=\"409\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Humanize-AI-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-550x409.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Humanize-AI-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-1024x762.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Humanize-AI-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-768x572.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Humanize-AI-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.png 1067w\" 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-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.txt\" target=\"_blank\" rel=\"noopener\">humanized text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>22% AI<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u274c<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthGPT-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1983\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthGPT-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-550x405.png\" alt=\"\" width=\"550\" height=\"405\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthGPT-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-550x405.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthGPT-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-1024x753.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthGPT-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-768x565.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthGPT-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.png 1078w\" 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-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.txt\" target=\"_blank\" rel=\"noopener\">humanized text<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>26% AI<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u274c<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/WriteHuman-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1956\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/WriteHuman-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-550x408.png\" alt=\"\" width=\"550\" height=\"408\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/WriteHuman-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-550x408.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/WriteHuman-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-1024x760.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/WriteHuman-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-768x570.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/WriteHuman-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.png 1078w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>SuperHumanizer<\/strong><br \/>\n(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/SuperHumanizer-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.txt\" target=\"_blank\" rel=\"noopener\">humanized text<\/a>)<\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\"><strong>41% AI<\/strong><\/span><\/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\/SuperHumanizer-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1944\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/SuperHumanizer-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-550x405.png\" alt=\"\" width=\"550\" height=\"405\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/SuperHumanizer-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-550x405.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/SuperHumanizer-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-1024x754.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/SuperHumanizer-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-768x565.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/SuperHumanizer-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.png 1080w\" 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-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.txt\" target=\"_blank\" rel=\"noopener\">humanized text<\/a>)<\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\"><strong>40% AI<\/strong><\/span><\/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\/StealthWriter-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1947\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthWriter-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-550x410.png\" alt=\"\" width=\"550\" height=\"410\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthWriter-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-550x410.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthWriter-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-1024x764.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthWriter-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-768x573.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/StealthWriter-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.png 1071w\" 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-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.txt\" target=\"_blank\" rel=\"noopener\">humanized text<\/a>)<\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\"><strong>57% AI<\/strong><\/span><\/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\/Walter-Writes-AI-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1949\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Walter-Writes-AI-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-550x405.png\" alt=\"\" width=\"550\" height=\"405\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Walter-Writes-AI-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-550x405.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Walter-Writes-AI-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-1024x755.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Walter-Writes-AI-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-768x566.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Walter-Writes-AI-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.png 1088w\" 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-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.txt\" target=\"_blank\" rel=\"noopener\">humanized text<\/a>)<\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\"><strong>95% AI<\/strong><\/span><\/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\/Grammarly-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1952\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grammarly-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-550x410.png\" alt=\"\" width=\"550\" height=\"410\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grammarly-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-550x410.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grammarly-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-1024x763.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grammarly-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-768x572.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Grammarly-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.png 1073w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>QuillBot<\/strong><br \/>\n(<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/QuillBot-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.txt\" target=\"_blank\" rel=\"noopener\">humanized text<\/a>)<\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\"><strong>39% AI<\/strong><\/span><\/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\/QuillBot-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1954\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/QuillBot-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-550x410.png\" alt=\"\" width=\"550\" height=\"410\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/QuillBot-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-550x410.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/QuillBot-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-1024x763.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/QuillBot-Humanized-Text-About-the-Titanic-Undetectable-AI-Test-768x573.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/QuillBot-Humanized-Text-About-the-Titanic-Undetectable-AI-Test.png 1077w\" 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<\/span><\/h2>\n<div class=\"alert alert-success\"><strong>9\/10 Tests Passed\u00a0<\/strong>&#8211; Only <span style=\"text-decoration: underline;\">1 false positive<\/span> occurred when testing Undetectable AI against human-written content.<\/div>\n<p>For the third and final test, we evaluated whether Undetectable AI would mistake human-written articles for LLM-generated text. To do this, we ran 10 articles through the AI detector and recorded the score assigned to each.<\/p>\n<p>Any instance where human-written content was flagged as AI was treated as a <strong>false positive<\/strong>.<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>Proof<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>The Tell-Tale Heart<\/strong><\/p>\n<p>(<a href=\"https:\/\/poemuseum.org\/the-tell-tale-heart\/\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>98% Human<\/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\/05\/The-Tell-Tale-Heart-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-2343\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/05\/The-Tell-Tale-Heart-Undetectable-AI-Test-550x417.png\" alt=\"\" width=\"550\" height=\"417\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/05\/The-Tell-Tale-Heart-Undetectable-AI-Test-550x417.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/05\/The-Tell-Tale-Heart-Undetectable-AI-Test-1024x777.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/05\/The-Tell-Tale-Heart-Undetectable-AI-Test-768x583.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/05\/The-Tell-Tale-Heart-Undetectable-AI-Test.png 1070w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>For Whom the Bell Tolls (excerpt)<\/strong><\/p>\n<p>(<a href=\"https:\/\/www.vpm.org\/npr-news\/2008-10-10\/excerpt-for-whom-the-bell-tolls\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>95% Human<\/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\/From-Whom-the-Bell-Tolls-Excerpt-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-2008\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/From-Whom-the-Bell-Tolls-Excerpt-Undetectable-AI-Test-550x410.png\" alt=\"\" width=\"550\" height=\"410\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/From-Whom-the-Bell-Tolls-Excerpt-Undetectable-AI-Test-550x410.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/From-Whom-the-Bell-Tolls-Excerpt-Undetectable-AI-Test-1024x764.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/From-Whom-the-Bell-Tolls-Excerpt-Undetectable-AI-Test-768x573.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/From-Whom-the-Bell-Tolls-Excerpt-Undetectable-AI-Test.png 1074w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>NBC News (article)<\/strong><\/p>\n<p>(<a href=\"https:\/\/www.nbcnews.com\/politics\/congress\/republicans-split-using-taxpayer-funds-trump-white-house-ballroom-rcna342290\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>97% Human<\/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\/NBC-News-Article-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-2007\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/NBC-News-Article-Undetectable-AI-Test-550x410.png\" alt=\"\" width=\"550\" height=\"410\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/NBC-News-Article-Undetectable-AI-Test-550x410.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/NBC-News-Article-Undetectable-AI-Test-1024x763.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/NBC-News-Article-Undetectable-AI-Test-768x573.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/NBC-News-Article-Undetectable-AI-Test.png 1069w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Wikipedia (&#8220;woodchipper&#8221;)<\/strong><\/p>\n<p>(<a href=\"https:\/\/en.wikipedia.org\/wiki\/Woodchipper\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>85% Human<\/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-Woodchipper-Article-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-2006\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-Woodchipper-Article-Undetectable-AI-Test-550x407.png\" alt=\"\" width=\"550\" height=\"407\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-Woodchipper-Article-Undetectable-AI-Test-550x407.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-Woodchipper-Article-Undetectable-AI-Test-1024x759.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-Woodchipper-Article-Undetectable-AI-Test-768x569.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Wikipedia-Woodchipper-Article-Undetectable-AI-Test.png 1080w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Fox News\u00a0(article)<\/strong><\/p>\n<p>(<a href=\"https:\/\/www.foxnews.com\/opinion\/steve-forbes-4-ways-fix-whats-wrong-new-york-city-stop-exodus\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>24% Human<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u274c<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Fox-News-Article-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-2005\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Fox-News-Article-Undetectable-AI-Test-550x408.png\" alt=\"\" width=\"550\" height=\"408\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Fox-News-Article-Undetectable-AI-Test-550x408.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Fox-News-Article-Undetectable-AI-Test-1024x759.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Fox-News-Article-Undetectable-AI-Test-768x570.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Fox-News-Article-Undetectable-AI-Test.png 1076w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Morningstar (article)<\/strong><\/p>\n<p>(<a href=\"https:\/\/www.morningstar.com\/markets\/markets-brief-earnings-loom-is-software-rout-over\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>78% Human<\/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\/Morningstar-Article-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-2004\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Morningstar-Article-Undetectable-AI-Test-550x402.png\" alt=\"\" width=\"550\" height=\"402\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Morningstar-Article-Undetectable-AI-Test-550x402.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Morningstar-Article-Undetectable-AI-Test-1024x748.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Morningstar-Article-Undetectable-AI-Test-768x561.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Morningstar-Article-Undetectable-AI-Test.png 1087w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Investing.com (article)<\/strong><\/p>\n<p>(<a href=\"https:\/\/www.investing.com\/news\/economy-news\/fed-will-need-to-explain-why-current-inflation-jump-differs-from-2022-surge-4608353\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>89% Human<\/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\/Investing.com-Article-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-2009\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Investing.com-Article-Undetectable-AI-Test-550x408.png\" alt=\"\" width=\"550\" height=\"408\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Investing.com-Article-Undetectable-AI-Test-550x408.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Investing.com-Article-Undetectable-AI-Test-1024x760.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Investing.com-Article-Undetectable-AI-Test-768x570.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Investing.com-Article-Undetectable-AI-Test.png 1086w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Nobelprize.org (interview)<\/strong><\/p>\n<p>(<a href=\"https:\/\/www.nobelprize.org\/prizes\/physics\/2019\/queloz\/193555-queloz-interview-december-2019\/\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>98% Human<\/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\/Nobelprize.org-Interview-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-2011\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Nobelprize.org-Interview-Undetectable-AI-Test-550x405.png\" alt=\"\" width=\"550\" height=\"405\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Nobelprize.org-Interview-Undetectable-AI-Test-550x405.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Nobelprize.org-Interview-Undetectable-AI-Test-1024x754.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Nobelprize.org-Interview-Undetectable-AI-Test-768x566.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Nobelprize.org-Interview-Undetectable-AI-Test.png 1082w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>arXiv (academic paper)<\/strong><\/p>\n<p>(<a href=\"https:\/\/arxiv.org\/pdf\/1210.6321\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>96% Human<\/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\/arXiv-Academic-Paper-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-2000\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/arXiv-Academic-Paper-Undetectable-AI-Test-550x414.png\" alt=\"\" width=\"550\" height=\"414\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/arXiv-Academic-Paper-Undetectable-AI-Test-550x414.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/arXiv-Academic-Paper-Undetectable-AI-Test-1024x771.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/arXiv-Academic-Paper-Undetectable-AI-Test-768x578.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/arXiv-Academic-Paper-Undetectable-AI-Test.png 1077w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong>Science News Explorers (article)<\/strong><\/p>\n<p>(<a href=\"https:\/\/www.snexplores.org\/article\/luca-common-ancestor-evolution\" target=\"_blank\" rel=\"noopener\">view article<\/a>)<\/td>\n<td style=\"text-align: center;\"><strong>83% Human<\/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\/Science-News-Explorers-Article-Undetectable-AI-Test.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-2013\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Science-News-Explorers-Article-Undetectable-AI-Test-550x411.png\" alt=\"\" width=\"550\" height=\"411\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Science-News-Explorers-Article-Undetectable-AI-Test-550x411.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Science-News-Explorers-Article-Undetectable-AI-Test-1024x766.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Science-News-Explorers-Article-Undetectable-AI-Test-768x575.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/04\/Science-News-Explorers-Article-Undetectable-AI-Test.png 1080w\" 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-warning\" role=\"alert\">\n<h2><strong>Does Undetectable AI Work?<\/strong><\/h2>\n<p>Test results indicated that Undetectable AI <strong>works fairly well<\/strong> at detecting AI and distinguishing LLM-generated text from human-written content. However, it <strong>struggled with humanized articles<\/strong>, where its detection accuracy decreased significantly.<\/p>\n<p>Looking at Trustpilot reviews, many customers complained about the <strong>pricing and billing system<\/strong>. That said, Undetectable AI still holds an average rating of <strong>3.5 stars<\/strong>.<\/p>\n<p><a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/05\/Trustpilot-Undetectable-AI.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-2365\" src=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/05\/Trustpilot-Undetectable-AI-550x106.png\" alt=\"\" width=\"550\" height=\"106\" srcset=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/05\/Trustpilot-Undetectable-AI-550x106.png 550w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/05\/Trustpilot-Undetectable-AI-1024x198.png 1024w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/05\/Trustpilot-Undetectable-AI-768x148.png 768w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/05\/Trustpilot-Undetectable-AI-1536x296.png 1536w, https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/05\/Trustpilot-Undetectable-AI.png 1814w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/p>\n<\/div>\n<h2><span style=\"text-decoration-line: underline; font-family: inherit; font-size: 35px; font-style: inherit;\">Frequently Asked Questions<\/span><\/h2>\n<h3><strong>Do unused credits carry over?<\/strong><\/h3>\n<p><strong>It depends<\/strong>. Unused credits do not carry over on standard plans, but they do on business plans.<\/p>\n<hr \/>\n<h3><strong>Are sentence-by-sentence breakdowns provided?<\/strong><\/h3>\n<p><strong>Yes<\/strong>, scanned text is color-coded in detection reports. Content likely generated by AI is highlighted in pink, while text more likely written by humans is highlighted in green (<a href=\"https:\/\/aidetector.com\/blog\/wp-content\/uploads\/2026\/05\/Undetectable-AI-Sentence-by-Sentence-Breakdown.png\" target=\"_blank\" rel=\"noopener\">see image<\/a>).<\/p>\n<hr \/>\n<h3><strong>Is document scanning included?<\/strong><\/h3>\n<p><strong>Yes<\/strong>, users can upload and scan files in TXT, DOCX, PDF, and CSV formats.<a href=\"#source-2\"><sup>[2]<\/sup><\/a><\/p>\n<hr \/>\n<h3><strong>Is image scanning provided?<\/strong><\/h3>\n<p><strong>Yes<\/strong>, the AI image detector allows users to scan PDF, JPG, or PNG files up to 10MB in size.<a href=\"#source-3\"><sup>[3]<\/sup><\/a><\/p>\n<hr \/>\n<h3><strong>Are user images stored or shared?<\/strong><\/h3>\n<p><strong>No<\/strong>, images uploaded by users are deleted immediately after the detection process.<a href=\"#source-4\"><sup>[4]<\/sup><\/a><\/p>\n<hr \/>\n<h3><strong>Are reports shareable?<\/strong><\/h3>\n<p><strong>Yes<\/strong>, AI detection reports can be exported as PDFs and shared with others.<\/p>\n<hr \/>\n<h3><strong>Does Undetectable AI provide certifications?<\/strong><\/h3>\n<p><strong>No<\/strong>, Undetectable AI does not provide certifications proving that a scan occurred or that content is guaranteed to be AI-free.<\/p>\n<hr \/>\n<h3><strong>Are AI detections used for internal training?<\/strong><\/h3>\n<p>Nothing in Undetectable AI&#8217;s <a href=\"https:\/\/undetectable.ai\/privacy\" target=\"_blank\" rel=\"noopener\">privacy policy<\/a> or <a href=\"https:\/\/undetectable.ai\/terms\" target=\"_blank\" rel=\"noopener\">terms of service<\/a> indicates that AI detection results are used to train its AI models.<\/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:\/\/undetectable.ai\/help\" target=\"_blank\" rel=\"noopener\">https:\/\/undetectable.ai\/help<\/a><\/li>\n<li><a id=\"source-2\" href=\"https:\/\/undetectable.ai\/bulk-scan#:~:text=What%20file%20formats,or%20.pdf%20format.\" target=\"_blank\" rel=\"noopener\">https:\/\/undetectable.ai\/bulk-scan<\/a><\/li>\n<li><a id=\"source-3\" href=\"https:\/\/undetectable.ai\/ai-image-detector#FAQ:~:text=What%20image%20formats,analyze%20it%20instantly.\" target=\"_blank\" rel=\"noopener\">https:\/\/undetectable.ai\/ai-image-detector<\/a><\/li>\n<li><a id=\"source-4\" href=\"https:\/\/undetectable.ai\/ai-image-detector#FAQ:~:text=Is%20my%20image,process%20is%20complete.\" target=\"_blank\" rel=\"noopener\">https:\/\/undetectable.ai\/ai-image-detector<\/a><\/li>\n<\/ol>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Undetectable AI (undetectable.ai) is an AI detection and content rewriting platform that first released in early 2023. It&#8217;s best known for its humanizer, which modifies AI-generated text to sound more natural and less detectable by AI scanners. The company even offers refunds if content generated with its tool fails to bypass AI detection.[1] In addition &#8230; <a title=\"Undetectable AI Review\" class=\"read-more\" href=\"https:\/\/aidetector.com\/blog\/undetectable-ai\/\" aria-label=\"Read more about Undetectable AI Review\">Read more<\/a><\/p>\n","protected":false},"author":7,"featured_media":2431,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"editor_rating":"3","footnotes":""},"class_list":["post-1897","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>Undetectable AI 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\/undetectable-ai\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Undetectable AI Review | Accuracy Report\" \/>\n<meta property=\"og:description\" content=\"Undetectable AI (undetectable.ai) is an AI detection and content rewriting platform that first released in early 2023. 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