{"id":16992,"date":"2025-11-09T21:32:00","date_gmt":"2025-11-09T21:32:00","guid":{"rendered":"https:\/\/undetectable.ai/blog\/?p=16992"},"modified":"2026-08-25T07:56:24","modified_gmt":"2026-08-25T07:56:24","slug":"caktus-ai-review","status":"publish","type":"post","link":"https:\/\/undetectable.ai/blog\/caktus-ai-review\/","title":{"rendered":"Caktus AI Review: Is It Still Worth Using in 2025?"},"content":{"rendered":"<p>Are you also tired of shifting from one tool to another for help as you get through your assignments and study sessions?<\/p>\n<p>I know, I sure was!<\/p>\n<p>I was lucky to get my hands on Caktus AI, a single platform that promises to handle essay writing and STEM assistance (yes, it does claim to solve all your SQL queries!)<\/p>\n<p>But how good is it really? I tested it myself to see how it actually works and how it performs in the hands of a user.\u00a0<\/p>\n<p>And in this Caktus AI review, I spill all the details I noticed about Caktus AI so you can decide if you really need it or if it\u2019s just another generic AI.<\/p>\n<p>Let\u2019s get started!<\/p>\n<hr>\n<p><strong>Key Takeaways<\/strong><\/p>\n<ul>\n<li>\n<p>Caktus AI is an education-first generative AI platform for students and educators trained on scholarly data.<\/p>\n<\/li>\n<li>\n<p>It was founded by Tao Zhang and Harrison Leonard in 2022 and has already attracted over 2.6 million users in just a few years.<\/p>\n<\/li>\n<li>\n<p>Caktus runs on its proprietary model, Eguana, built in partnership with Multimodal and trained on around 5 billion tokens of academic text.<\/p>\n<\/li>\n<li>\n<p>Its toolset exceeds 40 specialized modules that cover essay writing, citation generation, summarization, and STEM problem-solving.<\/p>\n<\/li>\n<\/ul>\n<p>\u00a0<\/p>\n<hr>\n<h2>What Is Caktus AI?<\/h2>\n<p>Caktus AI is an educational-focused generative AI platform built for students. It is trained only on scholarly sources across the internet.<\/p>\n<p>Therefore, it is a very <a href=\"\/best-ai-tools-for-students\/\">suitable AI tool for students<\/a> and educators.<\/p>\n<p>Caktus AI was founded in 2022 by co-founders Tao Zhang and Harrison Leonard.<\/p>\n<p><!-- inline-cta --><\/p>\n<p><img decoding=\"async\" src=\"\/assets\/caktus-ai-review\/caktus-ai-build-for-students-e1778015117557-1024x417.jpg\" alt=\"Caktus AI screenshot showing AI Build for Students interface and features\" title=\"\"><\/p>\n<p>According to its App Store listing, over 2.6 million users have downloaded Caktus AI, which is an impressive figure for a platform that\u2019s barely a few years old.<\/p>\n<p>The platform houses more than 40 specialized tools for different needs a student may face.<\/p>\n<p>We can roughly divide those tools into aspects:\u00a0<\/p>\n<ol>\n<li>\n<p>The writing suite includes an Essay Writer, Paragraph Generator, Personal Statement Builder, and a Text Summarizer.\u00a0<\/p>\n<\/li>\n<li>\n<p>A STEM assistant, which includes problem-solving tools for Physics, Chemistry, Math, and Coding. The Coding Assistant supports all popular programming languages ( Python, Java, C#, and JavaScript).<\/p>\n<\/li>\n<\/ol>\n<p>Caktus AI puts a lot of emphasis on integrity in AI, as stated on the website, \u201cevery feature encourages revision, comprehension, proper citation, and responsible academic use.\u201d\u00a0<\/p>\n<h3>The Tech Behind Caktus AI<\/h3>\n<p>At its inception, the founders\u00a0 launched a GPT-3-powered tool for students, however, the founders were quick to reach the conclusion that using off-the\u2010shelf models wasn\u2019t sustainable for their domain because they wanted to prioritize academic rigor.<\/p>\n<p>This realization also highlighted the importance of <a href=\"https:\/\/www.customwritings.com\/\" target=\"_blank\" rel=\"noopener\">custom writing<\/a> solutions that could better align with specific academic standards and expectations.<\/p>\n<p>By December of that same year, they had partnered with Multimodal to build a proprietary model (named \u201cEguana\u201d) trained on academic data.\u00a0<\/p>\n<p>It is currently the world\u2019s best LLM for academic needs.<\/p>\n<p>A case study reports that approximately 5 billion tokens of academic text were used in training Caktus.<\/p>\n<h3>Key Features of Caktus AI<\/h3>\n<p>Caktus AI isn\u2019t built for everyone, which is precisely its strength.<\/p>\n<p>It only targets students and academic writers and has a good list of features for this audience, such as:<\/p>\n<ul>\n<li>\n<p>It runs on models trained on millions of peer-reviewed papers and scholarly texts<\/p>\n<\/li>\n<li>\n<p>The text it produces includes verifiable references, which is a deliberate move to ensure that its generated text comes from real academic sources. It essentially reduces the \u201c<a href=\"\/grounding-and-hallucinations-in-ai\/\">hallucination<\/a>\u201d issue common to general AI writers.<\/p>\n<\/li>\n<li>\n<p>It provides step-by-step problem solving for STEM queries<\/p>\n<\/li>\n<li>\n<p>It contains a unified workspace for study materials like notes, drafts, citations, and assignments<\/p>\n<\/li>\n<li>\n<p>Caktus\u2019s entire system is wired around responsible use of AI<\/p>\n<\/li>\n<\/ul>\n<p>\u00a0<\/p>\n<h3>How Much Does Caktus AI Cost?<\/h3>\n<p>Is Caktus AI free? Unfortunately, Caktus AI does not offer any open-ended free plan.<\/p>\n<p>There used to be a small free trial for you to test the waters before you commit to a paid plan.<\/p>\n<p>The trial gave you 5,000 characters of free usage so you could explore how the tool writes, cites, and solves problems.\u00a0<\/p>\n<p>After that, you needed a paid plan to keep going. That free trial, however, has been discontinued.<\/p>\n<p>The pricing information is as follows:<\/p>\n<ul>\n<li>\n<p>The monthly plan is priced at $19.99\/month, which gives you full access to the platform without long-term commitment. If you get it for a year, you\u2019ll be paying around $240.\u00a0<\/p>\n<\/li>\n<li>\n<p>The annual plan is for $8.33\/month, billed $99.99 per year, which is a more cost-efficient route. It brings the per-month cost down by more than half compared to the monthly plan.<\/p>\n<\/li>\n<\/ul>\n<p>There\u2019s no feature limitation between the two. So, the only real difference is how much you want to save and how long you plan to stick around.<\/p>\n<h2>How Does It Work?<\/h2>\n<p>You\u2019ll need to create an account or log in before actually getting started with Caktus AI.<\/p>\n<p><img decoding=\"async\" src=\"\/assets\/caktus-ai-review\/join-caktus.webp\" alt=\"\" title=\"\"><\/p>\n<p>Once you\u2019re in, you land on a clean, focused dashboard that looks like a digital study desk.<\/p>\n<p><img decoding=\"async\" src=\"\/assets\/caktus-ai-review\/caktus-ai-dashboard-1024x407.webp\" alt=\"\" title=\"\"><\/p>\n<p>The Essay Writer is the natural place to begin for most users.<\/p>\n<p>Once you click on it, it requires you to select what you want written out of three options:\u00a0<\/p>\n<ol>\n<li>\n<p>An easy essay, the length of which is entirely decided by you, which also allows you to block or include citations<\/p>\n<\/li>\n<li>\n<p>A simple essay, which by default includes citations from scholarly sources\u00a0<\/p>\n<\/li>\n<li>\n<p>A detailed essay, which includes citations from academic sources, and multiple other personalization options to control the tone and style of your essay.<\/p>\n<\/li>\n<\/ol>\n<p>\u00a0<\/p>\n<p>\u00a0It requires you to type in a prompt and pick your citation style (APA, MLA, or Chicago).<\/p>\n<p>You can also upload your own readings or notes for it to reference, or search Caktus\u2019s internal database for credible sources.<\/p>\n<p><img decoding=\"async\" src=\"\/assets\/caktus-ai-review\/essay-writer-caktus-ai-1024x507.webp\" alt=\"\" title=\"\"><\/p>\n<p>Here\u2019s what the dashboard shows when you click on \u2018Easy Essay\u2019:\u00a0<\/p>\n<p><img decoding=\"async\" src=\"\/assets\/caktus-ai-review\/easy-essay-dashboard-1024x487.webp\" alt=\"\" title=\"\"><\/p>\n<p>All you have to do is describe your topic and select how long you want to be. The moment you hit \u2018Generate,\u2019 the AI goes to work building a structured essay.\u00a0<\/p>\n<p>When writing a detailed essay, you also get to see some tone customization options:<\/p>\n<p><img decoding=\"async\" src=\"\/assets\/caktus-ai-review\/tone-customizaion-options-1024x513.webp\" alt=\"\" title=\"\"><\/p>\n<p>The same dashboard gives you access to STEM assistants for math, physics, chemistry, etc.<\/p>\n<p>There are also plenty of other tools, like a summarizer, paragraph generator, AI detector, translator, and interview prep module, all living under the same roof.<\/p>\n<p><img decoding=\"async\" src=\"\/assets\/caktus-ai-review\/caktus-ai-other-tools-dashboard-1024x397.webp\" alt=\"\" title=\"\"><\/p>\n<h2>Is Caktus AI Flagged as AI-Generated Content?<\/h2>\n<p>To figure out whether content generated by Caktus AI can be flagged by AI detectors, let\u2019s conduct a quick AI detection test.<\/p>\n<p>Here is a thesis body paragraph generated through Caktus AI:<\/p>\n<p><img decoding=\"async\" src=\"\/assets\/caktus-ai-review\/body-paragraph-caktus-ai-1024x606.webp\" alt=\"\" title=\"\"><\/p>\n<p>Now, let\u2019s test this generated paragraph using Undetectable\u2019s AI detector which is ranked as one of the <a href=\"https:\/\/www.zdnet.com\/article\/i-tested-10-ai-content-detectors-and-these-5-correctly-identified-ai-text-every-time\/\" target=\"_blank\" rel=\"noopener\">best AI detectors by ZDNet<\/a>.<\/p>\n<p><img decoding=\"async\" src=\"\/assets\/caktus-ai-review\/undetectable-ais-ai-detector-has-correctly-identified-the-content-generated-by-c.webp\" alt=\"\" title=\"\"><\/p>\n<p>Now, as you can see, Undetectable AI\u2019s AI detector has correctly identified the content generated by Caktus AI as 99% AI, which means that Caktus AI content can be flagged as AI generated and can not help you <a href=\"\/5-proven-ways-to-bypass-ai-detection\/\">bypass AI detection<\/a>.<\/p>\n<h2>Comparison Between Caktus AI and Undetectable AI<\/h2>\n<p>Here is a transparent, side-by-side comparison between Caktus AI against one of its alternatives, Undetectable AI.<\/p>\n<p><!-- html-block --><\/p>\n<div class=\"blog-wp-table\">\n<table class=\"has-fixed-layout\">\n<tbody>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong>Category<\/strong><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong>Caktus AI<\/strong><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong>Undetectable AI<\/strong><\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\">Who it\u2019s for<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">Students and educators only&nbsp;<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">Writers, marketers, students, educators, basically anyone who needs close-to-human AI assistance&nbsp;<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\">Number\/scope of tools<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">Large, education-centric toolkit (40+ tools for writing, citation, STEM, summarizing, workspace).<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">A more advanced set of features, including an AI detector, an AI humanizer (rewriter), plagiarism checks, and utility features (APIs, job applier, etc.).<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\">Dedicated STEM tools (math\/physics\/chem\/coding)<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">Yes. Built-in step-by-step math and science solvers and coding helpers.<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">No dedicated STEM toolset.<br \/>But there is an all-in-one \u201cAsk AI,\u201d useful for broad homework help.<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\">\u201cundetectable\u201d claims<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">Offers a humanizer, but user reports show that Caktus-generated content is flagged by detectors.<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">Core product includes a humanizer + detection aggregator that is cited by independent tests\/reports, as \u201chuman-like\u201d across detectors.<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\">Pricing<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">Monthly \u2248 $19.99;<\/p>\n<p>Annual \u2248 $99.99\/yr (\u2248 $8.33\/mo).<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">Multiple pricing tiers are available.<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\">Free trial \/ free tier<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">No free trial or any persistent free plan.<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">A huge number of tools are forever free to use.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><!-- \/html-block --><\/p>\n<h2>What Makes Undetectable AI the Superior Choice<\/h2>\n<p>Caktus AI is really good for general homework help due to its specialized tools. But if your priority is undetectable, human-level output, Undetectable AI really steps ahead of Caktus AI.<\/p>\n<p>The humanizer in Undetectable AI actively works on the tone and structure of the text so it reads like it was written by an experienced writer.<\/p>\n<p>Unlike Caktus centered on student workflows only, Undetectable AI supports content creators, marketers, SEO professionals, educators, and students.<\/p>\n<p>There have been multiple independent tests and experiments that find the Undetectable AI detector accurate at differentiating between AI and human-written text.<\/p>\n<p>The same can not be said about Caktus AI.<\/p>\n<p>If you use Caktus to draft academic essays with citations, make sure to always run the draft through Undetectable AI\u2019s Paraphraser, SEO Content Writer, or AI Stealth Writer tools.<\/p>\n<p>With this workflow, you can optimize the text and reduce the likelihood of detection flags!\u00a0<\/p>\n<p>Use our AI Detector and Humanizer right below.<\/p>\n<h2>Conclusion<\/h2>\n<p>After putting Caktus AI through extensive testing, my verdict is that it sure is an impressive, feature-rich platform with a user-friendly interface.<\/p>\n<p>The proprietary model trained on billions of scholarly tokens is great at solving STEM queries.<\/p>\n<p>But in practice, a lot of its benefits are overshadowed by the fact that <strong>the text it produces is not as human-sounding as we expect from an academic AI tool<\/strong>.<\/p>\n<p>I found Undetectable AI to be a far stronger alternative for reliable, human-like AI output that you can trust.<\/p>\n<p>Give <a href=\"https:\/\/undetectable.ai\/\" target=\"_blank\" rel=\"noopener\">Undetectable AI<\/a> a try today!<\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":15,"featured_media":28147,"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-16992","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\/16992","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=16992"}],"version-history":[{"count":14,"href":"https:\/\/undetectable.ai/blog\/wp-json\/wp\/v2\/posts\/16992\/revisions"}],"predecessor-version":[{"id":28741,"href":"https:\/\/undetectable.ai/blog\/wp-json\/wp\/v2\/posts\/16992\/revisions\/28741"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/undetectable.ai/blog\/wp-json\/wp\/v2\/media\/28147"}],"wp:attachment":[{"href":"https:\/\/undetectable.ai/blog\/wp-json\/wp\/v2\/media?parent=16992"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/undetectable.ai/blog\/wp-json\/wp\/v2\/categories?post=16992"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/undetectable.ai/blog\/wp-json\/wp\/v2\/tags?post=16992"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}