{"id":13701,"date":"2025-08-20T17:50:23","date_gmt":"2025-08-20T17:50:23","guid":{"rendered":"https:\/\/undetectable.ai/blog\/?p=13701"},"modified":"2025-10-02T18:31:12","modified_gmt":"2025-10-02T18:31:12","slug":"mixtral-ai-review","status":"publish","type":"post","link":"https:\/\/undetectable.ai/blog\/mixtral-ai-review","title":{"rendered":"Mixtral AI Review 2025: Models, Features, Verdict"},"content":{"rendered":"\n<p>The Mixtral AI model is being called one of the fastest, smartest, and most affordable AI models out there.&nbsp;<\/p>\n\n\n\n<p>With its unique Mixtral of Experts design, it promises speed, accuracy, and support for multiple languages, all while staying open-source.<\/p>\n\n\n\n<p>But is it really that good?&nbsp;<\/p>\n\n\n\n<p>Can the Mixtral 8x7B Mistral AI create content that escapes AI detectors, or is that just a myth?<\/p>\n\n\n\n<p>Let\u2019s find out in this blog.<\/p>\n\n\n\n<p>In this Mixtral AI Review 2025, we\u2019ll take a closer look at how it works, how it performs in real use, what it costs, and what the latest Mixtral AI update brings.&nbsp;<\/p>\n\n\n\n<p>Most importantly, we\u2019ll test its content against AI detection tools to find out if Mixtral can pass as human writing.<\/p>\n\n\n\n<p>Let\u2019s dive in.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"has-text-align-center\"><strong>Key Takeaways<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mixtral AI model is open-source and affordable. You can run it locally for free (if you have the hardware) or use the Mistral API, which costs less than GPT-3.5.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Built on a \u201cMixtral of Experts\u201d system. It uses 8 experts but only calls the best 2 for each word, which makes it faster and more efficient than many bigger models.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tools like GPTZero, Originality.ai, CopyLeaks, and Sapling flagged Mixtral\u2019s content as 100% AI-generated, while the Undetectable AI Detector rated the same text as 99% human.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The latest Mixtral AI update looks promising. It supports more languages, better instruction-following, and an upcoming \u201cMistral-large\u201d release. It can become one of the strongest open-source rivals to GPT-4.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">What Is Mixtral AI?<\/h2>\n\n\n\n<p>Mixtral AI model<strong> <\/strong>is a widely used language model developed by Mistral AI.&nbsp;<\/p>\n\n\n\n<p>A Paris-based startup <em>(ex-DeepMind and Meta researchers) <\/em>founded Mistral AI in 2023.<\/p>\n\n\n\n<p>The company\u2019s mission is simple: \u201c<em>make cutting-edge AI models openly available to everyone.\u201d<\/em><\/p>\n\n\n\n<p>This means we can download the mixtral AI model or access it via Mistral\u2019s API without heavy restrictions.&nbsp;<\/p>\n\n\n\n<p>Now understand why Mixtral has become one of the most talked-about AI models:<\/p>\n\n\n\n<p>Mixtral uses a <strong>\u201cSparse Mixture-of-Experts\u201d<\/strong> system. What does that mean? Imagine it has 8 mini-experts inside, each with ~7 billion parameters.&nbsp;<\/p>\n\n\n\n<p>But instead of using all experts at once, a smart router picks the best 2 for each word (token).<\/p>\n\n\n\n<p>Mixtral AI model performs well in 5 languages such as English, French, German, Spanish, and Italian. It often beats Meta\u2019s LLaMA-2 70B in benchmarks.<\/p>\n\n\n\n<p>According to Mistral AI, Mixtral 8x7B Mistral AI:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Outperforms LLaMA-2 70B on most benchmarks.<\/li>\n\n\n\n<li>Matches or beats GPT-3.5 in several tests.<\/li>\n\n\n\n<li>Runs 6\u00d7 faster than LLaMA-2 70B despite being open-source.<\/li>\n<\/ul>\n\n\n\n<p>The latest mixtral AI update has introduced several versions for different use cases:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Version<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Description<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Mixtral-8x7B (Base)<\/td><td class=\"has-text-align-center\" data-align=\"center\">Pretrained model for general use.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Mixtral-8x7B Instruct<\/td><td class=\"has-text-align-center\" data-align=\"center\">Fine-tuned version, optimized for following instructions more naturally.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Mistral-small&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">API tier powered by Mixtral 8x7B Mistral AI.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Mistral-medium<\/td><td class=\"has-text-align-center\" data-align=\"center\">Stronger upgraded version, performs close to GPT-4 level on some tasks.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Mistral-large<\/td><td class=\"has-text-align-center\" data-align=\"center\">Upcoming model, expected to outperform most competitors in performance.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How Does It Work?<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><picture><source srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-002-1024x683.avif 1024w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-002-300x200.avif 300w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-002-768x512.avif 768w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-002-18x12.avif 18w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-002.avif 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" type=\"image\/avif\"><source srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-002-1024x683.webp 1024w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-002-300x200.webp 300w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-002-768x512.webp 768w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-002-18x12.webp 18w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-002.webp 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" type=\"image\/webp\"><img src=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-002-1024x683.jpg\" height=\"683\" width=\"1024\" srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-002-1024x683.jpg 1024w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-002-300x200.jpg 300w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-002-768x512.jpg 768w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-002-18x12.jpg 18w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-002.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" class=\"wp-image-13714 sp-no-webp\" alt=\"\" loading=\"lazy\" decoding=\"async\"  > <\/picture><\/figure><\/div>\n\n\n<p>Let\u2019s understand how a Mixtral of experts work:<\/p>\n\n\n\n<p><strong>Step 1: Input Tokenization<\/strong><\/p>\n\n\n\n<p>Our text is broken down into tokens which are small chunks of words or characters.<br><strong>Example: <\/strong>The sentence <em>\u201cAI is powerful\u201d<\/em> can be split into tokens like: AI, is, powerful.<\/p>\n\n\n\n<p><strong>Step 2: Routing<\/strong><\/p>\n\n\n\n<p>For each token, Mixtral AI model, there is a router (like a manager) which decides: <em>\u201cWhich 2 experts are best for this word?\u201d<\/em><br><strong>Example: <\/strong>For the token AI, the router may pick Expert 3 (good at tech) and Expert 7 (good at language).<\/p>\n\n\n\n<p><strong>Step 3: Expert Processing<\/strong><\/p>\n\n\n\n<p>The 2 chosen experts process the token using their own knowledge (feedforward layers).<\/p>\n\n\n\n<p><strong>Step 4: Combination<\/strong><\/p>\n\n\n\n<p>The outputs from these 2 experts are added together into a single result.<\/p>\n\n\n\n<p><strong>Example:<\/strong> Expert 3 says \u201cAI relates to machines,\u201d Expert 7 says \u201cAI relates to intelligence.\u201d Combined, the model understands \u201cArtificial Intelligence = intelligent machines.\u201d<\/p>\n\n\n\n<p><strong>Step 5: Transformer Layers<\/strong><\/p>\n\n\n\n<p>This routing + expert process repeats across multiple layers, refining the understanding at each step.<br>\u2192 Just like revising an essay draft multiple times until it\u2019s polished.<\/p>\n\n\n\n<p><strong>Step 6: Generation<\/strong><\/p>\n\n\n\n<p>Finally, the processed tokens are decoded back into human-readable text.<br>\u2192 Input: \u201cExplain AI in one line.\u201d<br>\u2192 Output: \u201cAI is the science of making machines smart.\u201d<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How Much Does Mixtral AI Cost?<\/h3>\n\n\n\n<p>One of the best parts about the Mixtral AI model is that it\u2019s open-source. This means the model itself is free to download from HuggingFace or Mistral\u2019s website under the Apache-2.0 license.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Option<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Cost<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Pros<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Cons<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Run Locally<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Free to download, but needs ~64GB RAM + 2 GPUs (expensive hardware\/cloud)<\/td><td class=\"has-text-align-center\" data-align=\"center\">Full control, no API fees<\/td><td class=\"has-text-align-center\" data-align=\"center\">High setup cost, requires technical skills<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Mistral API<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">~$0.64 per 1M input tokens, ~$1.93 per 1M output tokens (cheaper than GPT-3.5)<\/td><td class=\"has-text-align-center\" data-align=\"center\">Easy to use, no hardware needed<\/td><td class=\"has-text-align-center\" data-align=\"center\">Pay-as-you-go, costs scale with heavy usage<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Le Chat (Chatbot)<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Free plan (limited)Pro $14.99\/moTeam $24.99+\/user\/mo<\/td><td class=\"has-text-align-center\" data-align=\"center\">Simple UI, no setup, like ChatGPT<\/td><td class=\"has-text-align-center\" data-align=\"center\">Usage caps on free plan, monthly subscription for full access<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Use Mixtral AI: A Quick Overview<\/h2>\n\n\n\n<p>The Mixtral AI model can be used in two ways:&nbsp;<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Local Deployment (Self-Hosting)<\/strong><\/li>\n<\/ol>\n\n\n\n<p>If you want full control and have powerful hardware, you can run Mixtral locally:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Download Weights: <\/strong>Available free on HuggingFace or Mistral\u2019s site.<\/li>\n\n\n\n<li><strong>Requirements:<\/strong> ~64 GB GPU memory for the base model.<\/li>\n\n\n\n<li><strong>Optimizations:<\/strong> Developers often use quantization or tensor parallelism to run it on smaller setups.<\/li>\n<\/ul>\n\n\n\n<p>\u2192 Good for researchers, advanced developers, or teams who want total control.<\/p>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>Cloud API (Mistral Hosted)<\/strong><\/li>\n<\/ol>\n\n\n\n<p>If you don\u2019t want to deal with GPUs and setup, Mistral\u2019s API is the easier path:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Sign Up:<\/strong> Request access to their hosted API.<\/li>\n\n\n\n<li><strong>Use SDKs:<\/strong> Mistral offers client libraries (Python, JavaScript) similar to OpenAI\u2019s API.<\/li>\n<\/ul>\n\n\n\n<p>\u2192 Great for businesses or developers who want a plug-and-play solution without worrying about hardware.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Is It Flagged as AI-Generated Content?<\/h2>\n\n\n\n<p>One big question about tools like the Mixtral AI model is this: <strong>Can their text fool AI detectors?&nbsp;<\/strong><\/p>\n\n\n\n<p>Today, teachers, businesses, and publishers use these detectors to check if writing is done by a human or a machine.&nbsp;<\/p>\n\n\n\n<p>If an AI tool keeps passing as <strong>\u201chuman,\u201d <\/strong>it can break trust in schools, news, and professional work.<\/p>\n\n\n\n<p>To find out, we created about 300 words of text using Mixtral AI Chat.<\/p>\n\n\n\n<p>Then, we tested this text with several well-known AI detectors.&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><picture><source srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-Chat.avif 664w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-Chat-300x249.avif 300w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-Chat-14x12.avif 14w\" sizes=\"auto, (max-width: 664px) 100vw, 664px\" type=\"image\/avif\"><source srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-Chat.webp 664w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-Chat-300x249.webp 300w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-Chat-14x12.webp 14w\" sizes=\"auto, (max-width: 664px) 100vw, 664px\" type=\"image\/webp\"><img src=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-Chat.jpg\" height=\"552\" width=\"664\" srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-Chat.jpg 664w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-Chat-300x249.jpg 300w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Mixtral-AI-Chat-14x12.jpg 14w\" sizes=\"auto, (max-width: 664px) 100vw, 664px\" class=\"wp-image-13707 sp-no-webp\" alt=\"\" loading=\"lazy\" decoding=\"async\"  > <\/picture><\/figure><\/div>\n\n\n<h3 class=\"wp-block-heading\">The Test<\/h3>\n\n\n\n<p>To make sure the test was fair, we did the following:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Created the sample text of 300 words of plain, factual writing using Mixtral 8x7B Mistral AI.<br><\/li>\n\n\n\n<li>We chose five detectors: GPTZero, Originality.ai, CopyLeaks, Sapling, and the <strong>\u201cUndetectable AI Detector.\u201d<\/strong><br><\/li>\n\n\n\n<li>Used the same text on each tool without any prompt engineering and human layering tricks.<br><\/li>\n\n\n\n<li>We also saved screenshots to keep everything transparent.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">The Results<\/h3>\n\n\n\n<p>Here\u2019s what our testing has taught us:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Detector<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Result<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Interpretation<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">GPTZero<\/td><td class=\"has-text-align-center\" data-align=\"center\">100% AI-generated<\/td><td class=\"has-text-align-center\" data-align=\"center\">Mixtral flagged without hesitation<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Originality.ai<\/td><td class=\"has-text-align-center\" data-align=\"center\">100% AI-generated<\/td><td class=\"has-text-align-center\" data-align=\"center\">Matches published ~94% detection rate<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Copyleaks<\/td><td class=\"has-text-align-center\" data-align=\"center\">100% AI-generated<\/td><td class=\"has-text-align-center\" data-align=\"center\">Consistently detected as AI<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Sapling<\/td><td class=\"has-text-align-center\" data-align=\"center\">100% AI-generated<\/td><td class=\"has-text-align-center\" data-align=\"center\">Confirmed detection as AI<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Undetectable AI Detector<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>100% Human-generated<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Only tool to classify Mixtral text as human<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>GPT Zero Result &#8211; 100% AI-Generated<\/strong><\/li>\n<\/ol>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><picture><source srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/GPTZero-Result-1024x439.avif 1024w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/GPTZero-Result-300x129.avif 300w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/GPTZero-Result-768x329.avif 768w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/GPTZero-Result-18x8.avif 18w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/GPTZero-Result.avif 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" type=\"image\/avif\"><source srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/GPTZero-Result-1024x439.webp 1024w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/GPTZero-Result-300x129.webp 300w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/GPTZero-Result-768x329.webp 768w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/GPTZero-Result-18x8.webp 18w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/GPTZero-Result.webp 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" type=\"image\/webp\"><img src=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/GPTZero-Result-1024x439.jpg\" height=\"439\" width=\"1024\" srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/GPTZero-Result-1024x439.jpg 1024w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/GPTZero-Result-300x129.jpg 300w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/GPTZero-Result-768x329.jpg 768w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/GPTZero-Result-18x8.jpg 18w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/GPTZero-Result.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" class=\"wp-image-13708 sp-no-webp\" alt=\"\" loading=\"lazy\" decoding=\"async\"  > <\/picture><\/figure><\/div>\n\n\n<p>2. <strong>Originality AI Result &#8211; 100% AI-Generated<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><picture><source srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Originality-AI.avif 861w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Originality-AI-300x163.avif 300w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Originality-AI-768x417.avif 768w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Originality-AI-18x10.avif 18w\" sizes=\"auto, (max-width: 861px) 100vw, 861px\" type=\"image\/avif\"><source srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Originality-AI.webp 861w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Originality-AI-300x163.webp 300w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Originality-AI-768x417.webp 768w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Originality-AI-18x10.webp 18w\" sizes=\"auto, (max-width: 861px) 100vw, 861px\" type=\"image\/webp\"><img src=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Originality-AI.jpg\" height=\"468\" width=\"861\" srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Originality-AI.jpg 861w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Originality-AI-300x163.jpg 300w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Originality-AI-768x417.jpg 768w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Originality-AI-18x10.jpg 18w\" sizes=\"auto, (max-width: 861px) 100vw, 861px\" class=\"wp-image-13709 sp-no-webp\" alt=\"\" loading=\"lazy\" decoding=\"async\"  > <\/picture><\/figure><\/div>\n\n\n<p>3. <strong>Copyleaks Result &#8211; 100% AI-Detected&nbsp;<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><picture><source srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Copyleaks-AI-Result-1024x434.avif 1024w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Copyleaks-AI-Result-300x127.avif 300w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Copyleaks-AI-Result-768x326.avif 768w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Copyleaks-AI-Result-18x8.avif 18w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Copyleaks-AI-Result.avif 1047w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" type=\"image\/avif\"><source srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Copyleaks-AI-Result-1024x434.webp 1024w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Copyleaks-AI-Result-300x127.webp 300w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Copyleaks-AI-Result-768x326.webp 768w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Copyleaks-AI-Result-18x8.webp 18w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Copyleaks-AI-Result.webp 1047w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" type=\"image\/webp\"><img src=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Copyleaks-AI-Result-1024x434.jpg\" height=\"434\" width=\"1024\" srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Copyleaks-AI-Result-1024x434.jpg 1024w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Copyleaks-AI-Result-300x127.jpg 300w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Copyleaks-AI-Result-768x326.jpg 768w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Copyleaks-AI-Result-18x8.jpg 18w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Copyleaks-AI-Result.jpg 1047w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" class=\"wp-image-13710 sp-no-webp\" alt=\"\" loading=\"lazy\" decoding=\"async\"  > <\/picture><\/figure><\/div>\n\n\n<p>4. <strong>Sapling Result &#8211; 100% AI-Generated<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><picture><source srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Sapling-Result-1024x553.webp 1024w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Sapling-Result-300x162.avif 300w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Sapling-Result-768x415.avif 768w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Sapling-Result-18x10.avif 18w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Sapling-Result.avif 1137w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" type=\"image\/avif\"><source srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Sapling-Result-1024x553.webp 1024w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Sapling-Result-300x162.webp 300w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Sapling-Result-768x415.webp 768w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Sapling-Result-18x10.webp 18w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Sapling-Result.webp 1137w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" type=\"image\/webp\"><img src=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Sapling-Result-1024x553.jpg\" height=\"553\" width=\"1024\" srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Sapling-Result-1024x553.jpg 1024w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Sapling-Result-300x162.jpg 300w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Sapling-Result-768x415.jpg 768w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Sapling-Result-18x10.jpg 18w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Sapling-Result.jpg 1137w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" class=\"wp-image-13711 sp-no-webp\" alt=\"\" loading=\"lazy\" decoding=\"async\"  > <\/picture><\/figure><\/div>\n\n\n<p>5. <strong>Undetectable AI Detector &#8211; 99% Human-Generated<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><picture><source srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Undetectable-AI-Detector-1024x345.avif 1024w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Undetectable-AI-Detector-300x101.avif 300w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Undetectable-AI-Detector-768x259.avif 768w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Undetectable-AI-Detector-18x6.avif 18w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Undetectable-AI-Detector.avif 1345w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" type=\"image\/avif\"><source srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Undetectable-AI-Detector-1024x345.webp 1024w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Undetectable-AI-Detector-300x101.webp 300w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Undetectable-AI-Detector-768x259.webp 768w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Undetectable-AI-Detector-18x6.webp 18w,https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Undetectable-AI-Detector.webp 1345w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" type=\"image\/webp\"><img src=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Undetectable-AI-Detector-1024x345.jpg\" height=\"345\" width=\"1024\" srcset=\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Undetectable-AI-Detector-1024x345.jpg 1024w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Undetectable-AI-Detector-300x101.jpg 300w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Undetectable-AI-Detector-768x259.jpg 768w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Undetectable-AI-Detector-18x6.jpg 18w, https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/Undetectable-AI-Detector.jpg 1345w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" class=\"wp-image-13713 sp-no-webp\" alt=\"\" loading=\"lazy\" decoding=\"async\"  > <\/picture><\/figure><\/div>\n\n\n<p><strong>Key Insights<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Mixtral AI model<\/strong><strong> is Detectable<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>GPTZero, Originality.ai, CopyLeaks, and Sapling: 100% flagged as AI.<\/li>\n\n\n\n<li>Confirms Originality.ai\u2019s study: 94.3% detection rate on Mixtral 8x7B Mistral AI outputs.<\/li>\n<\/ul>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>Undetectable AI Detector Result<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The same text was classified as 99% human.<\/li>\n\n\n\n<li>Shows a different evaluation approach compared to other detectors.<\/li>\n<\/ul>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>Independent Benchmarking (ZDNet)<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ZDNet\u2019s test of 10 detectors placed <strong>Undetectable AI Detector among the most accurate.<\/strong><\/li>\n\n\n\n<li>Confirms reliability beyond our internal testing.<\/li>\n<\/ul>\n\n\n\n<p>Stay ahead of detection systems\u2014verify and humanize your text with our tools below.<\/p>\n\n\n\n<div id=\"uai-widget\" data-affiliate-link=\"https:\/\/undetectable.ai\/?_by=hi4km\"><script>var js = document.createElement(\"script\");js.async = true;js.src = \"https:\/\/widget.undetectable.ai\/js\/widget-loader.js?t=\"+Date.now();document.getElementsByTagName(\"head\")[0].appendChild(js);<\/script><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Final Verdict<\/h2>\n\n\n\n<p>Our test shows that Mixtral AI model\u2019s text is usually caught as AI by tools like GPTZero, Originality.ai, CopyLeaks, and Sapling.&nbsp;<\/p>\n\n\n\n<p>But our Undetectable <a href=\"https:\/\/undetectable.ai\/\" target=\"_blank\" rel=\"noreferrer noopener\">AI Detector<\/a> judged the same text as 99% human, showing it doesn\u2019t wrongly label content as AI.<\/p>\n\n\n\n<p>ZDNet\u2019s independent review already ranked our tool as one of the most accurate detectors, and this test supports that.<\/p>\n\n\n\n<p>In short:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Other tools flag Mixtral AI models as AI.<\/li>\n\n\n\n<li>Our tool reads it as human, with more accuracy.<\/li>\n<\/ul>\n\n\n\n<p>In short, Mistral AI update creates good content, but detectors can still spot it as AI. This makes it clear and trustworthy, just like other top models.<\/p>\n\n\n\n<p>Try <a href=\"https:\/\/undetectable.ai\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/undetectable.ai\/\" rel=\"noreferrer noopener\">Undetectable AI<\/a> today and see the difference in accuracy for yourself.<\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":15,"featured_media":13706,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-13701","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-reviews"],"_links":{"self":[{"href":"https:\/\/undetectable.ai/blog\/wp-json\/wp\/v2\/posts\/13701","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/undetectable.ai/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/undetectable.ai/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/undetectable.ai/blog\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/undetectable.ai/blog\/wp-json\/wp\/v2\/comments?post=13701"}],"version-history":[{"count":5,"href":"https:\/\/undetectable.ai/blog\/wp-json\/wp\/v2\/posts\/13701\/revisions"}],"predecessor-version":[{"id":14863,"href":"https:\/\/undetectable.ai/blog\/wp-json\/wp\/v2\/posts\/13701\/revisions\/14863"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/undetectable.ai/blog\/wp-json\/wp\/v2\/media\/13706"}],"wp:attachment":[{"href":"https:\/\/undetectable.ai/blog\/wp-json\/wp\/v2\/media?parent=13701"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/undetectable.ai/blog\/wp-json\/wp\/v2\/categories?post=13701"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/undetectable.ai/blog\/wp-json\/wp\/v2\/tags?post=13701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}