Originality AI and Undetectable AI are two popular tools designed to tackle AI-generated content detection, but are they the same? What sets them apart, and which one is the best fit for your needs? As you go through this comparison, we’re sure you’ll uncover the key aspects of each tool to help you make an informed decision. Ready to dive into the comparison between Originality AI vs Undetectable AI? Let’s get started!
Originality AI is a leading AI detection tool designed to identify AI-generated content and ensure content originality. It boasts an impressive 98.8% accuracy in detecting GPT-4 and ChatGPT content. Additionally, it offers a plagiarism checker to verify content uniqueness and a fact-checker to validate information accuracy. This makes it an ideal choice for educators, content creators, and businesses aiming to maintain high content integrity.
Originality AI detects AI-generated content with advanced algorithms
Undetectable AI, launched in May 2023 by Loughborough University PhD student Bars Juhasz and colleagues Christian Perry and Devan Leos, is a tool that converts AI-generated content to resemble human writing. It features 8 checkers and a rephrasing tool, utilizing advanced techniques to bypass detection systems like GPTZero, Copyleaks, ZeroGPT, Quilbot, and Grammarly etc. Rated the #1 Best AI Detector by Forbes, it generates large volumes of undetectable AI content that appears human-like.
Undetectable AI humanizing content to evade AI detection
Before delving into the specifics, let’s briefly review the Fast Feature Comparison Table to understand how these two platforms stack up against each other!
| Feature | Originality AI | Undetectable AI |
| AI Content Detection | ✅ Yes | ✅ Yes |
| AI Humanizer | ✅ Yes | ✅ Yes |
| Fact-checking | ✅ Yes | ❌ No |
| Grammar Checker | ✅ Yes | ❌ No |
| API & Integrations | ✅ Yes | ✅ Yes |
Now, let’s dive deeper into the key features of both Originality AI and Undetectable AI to help you decide which tool is best suited for your needs.
Originality AI offers impressive AI detection capabilities with up to 99% accuracy and a false positive rate under 3%, depending on the model used. It supports detection across 15 languages and performs exceptionally well against AI models like ChatGPT, GPT-4, and Llama. With 98% accuracy in detecting AI-generated scientific papers, it stands out as a reliable solution for educators, businesses, and content creators.
Originality AI offers up to 99% accuracy
The official website of Undetectable AI states that the tool is accurate in detecting AI-generated content between 85% and 95%. It utilizes advanced machine learning and text analysis techniques and works with multiple AI models, including ChatGPT, GPT-4, and Gemini. Additionally, it integrates with 8 different detection engines to provide a comprehensive view of content detectability.
Undetectable AI offers 85–95% accuracy
Originality AI’s Plagiarism Checker stands out with 90% accuracy for global plagiarism and 74% for patchwork plagiarism, making it a top choice for ensuring originality. It detects complex forms of plagiarism like paraphrasing and mosaic plagiarism, which many tools miss. By scanning multilingual content against Google search results, it helps content creators, educators, and businesses maintain high standards and prevent plagiarism.
Want a deeper look? Check out our full Originality AI Review for detailed insights!
Originality AI plagiarism checker ensures unique content
Undetectable AI provides a free AI plagiarism checker that identifies whether content is AI-generated, such as text from ChatGPT or GPT-4. However, it does not perform traditional plagiarism checks against external sources. In contrast, Originality AI offers comprehensive detection for both AI-generated and traditional plagiarism, making it the better choice for those needing to ensure true content originality. Undetectable AI focuses mainly on humanizing AI content rather than checking for duplication.
Undetectable AI no plagiarism check
Originality AI’s AI Humanizer makes AI-generated text sound more natural with customizable tones like Standard, Academic, Professional, and SEO/Blog. However, this feature is not the main strength of Originality AI. Its primary focus is on AI content detection and plagiarism checking.
Undetectable AI’s AI Humanizer is the tool’s standout feature, designed to transform AI-generated content into human-like text that can bypass even the most advanced detection tools. Using advanced paraphrasing and detection-bypass algorithms, it ensures content stays undetectable by systems like GPTZero, OpenAI, Copyleaks, and Grammarly. This ability to consistently produce authentic, undetectable content makes Undetectable AI a top choice for large-scale AI content generation.
Undetectable AI’s Humanizer transforms AI-generated content to bypass detection tools
undetectable-ai-humanizer
Undetectable AI’s Humanizer transforms AI-generated content to bypass detection tools
In today’s AI-driven world, verifying information is more important than ever, as AI can easily aggregate or fabricate details. Originality AI’s Automated Fact Checker is a major strength, offering real-time, automated fact verification to quickly assess the accuracy of facts, figures, and events. It boosts fact-checking efficiency and systematically reduces the risk of publishing false information, helping content creators maintain high credibility and reliability.
Originality AI’s Automated Fact Checker verifies content accuracy
Undetectable AI does not provide a fact-checking feature. It is designed to humanize AI-generated text, not to validate the accuracy of content.
| Feature | Originality AI | Undetectable AI |
| Pros | ✅ Very easy to use with a simple interface
✅ Detects plagiarism from the internet ✅ Verifies factual accuracy ✅ Provides a readability score ✅ Provides API access for integration with other third-party tools. |
✅ 8-in-1 AI Detection Preview
✅ Customizable audience levels in the AI Humanizer (university, high school, legal writing styles) ✅ Side-by-side display of original and rewritten text ✅ More budget-friendly (especially with bulk plans) ✅ Free trial available (limited but real use) |
| Cons | ❌ Can be expensive for small businesses.
❌ No full free version to test all capabilities |
❌ No traditional plagiarism checking (only AI plagiarism detection)
❌ Free version produces inconsistent quality |
| Plan | Price | Credits | Highlight Features |
| Pay As You Go | $30 (one-time payment) | 3,000 credits (2 years expiry) | AI Checker, Plagiarism Checker, Readability Checker, Fact Checking Aid |
| Pro Plan | $12.95/month | 2,000 credits/month | Everything in Pay As You Go + Full Site Scans, Team Management, Chrome Extension |
| Enterprise Plan | $136.58/month | 15,000 credits/month | Everything in Pro + API Access, 365 Days Scan History, Priority Support |
NOTE: 1 credit = 100 words.
Credits expire monthly for Pro/Enterprise, and after 2 years for Pay As You Go.
Originality AI Pricing Plans
| Plan | Price | Word Limit | Highlight Features |
| Yearly Plan | $5.00/month (billed annually) | 10,000 words/month | 6 months free, Human Auto Typer, Unlimited AI Detection, API |
| Monthly Plan | $19.00/month | 20,000 words/month | Flexible cancellation, Human Auto Typer, Unlimited AI Detection |
| Business Plan | Custom Pricing | Custom (500,000+ words) | White-labeling, Non-expiring credits, API, Priority Support |
NOTE: The pricing shown reflects the starting rates for the lowest word count available in each plan. Actual pricing may vary based on the total number of words you choose to purchase.
Undetectable AI Pricing Plans
Note: Pricing and features may change over time. For the latest information, please refer to the official websites of Undetectable AI and Originality AI.
When comparing Originality AI and Undetectable AI, consider these key factors:
In the battle of Originality AI vs Undetectable AI for AI detection, Originality AI stands out with its robust capabilities in directly identifying AI-generated content and detecting plagiarism. Meanwhile, Undetectable AI focuses on refining AI-generated text to pass detection checks, making it a strong choice for those aiming to make AI content appear human-written.
Originality AI is widely considered the most accurate for detecting AI-generated content due to its advanced algorithms and detailed analysis.
Originality AI specializes in detecting AI-generated content and ensuring originality, while Undetectable AI focuses on humanizing AI content to make it undetectable by detection tools.
While humanized AI is harder to detect, it can still be flagged by advanced AI detection tools, depending on the level of humanization and the detection system used.
Undetectable AI significantly reduces the chances of detection, but no AI tool is 100% foolproof, and some advanced detection systems may still identify humanized content.
