Best AI Content Detection Tools
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Compare the Top AI Content Detection Tools as of May 2025
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What are AI Content Detection Tools?
AI content detection tools are software tools designed to detect whether a piece of text was written by an artificial intelligence system. These tools compare the text to a library of known AI-generated phrases and sentences, scoring it based on its similarity to those examples. The results can help provide insight into how much of the text was written by AI versus a human writer. Compare and read user reviews of the best AI Content Detection tools currently available using the table below. This list is updated regularly.
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1
Gapmarks
Gapmarks
Gapmarks is a software company that was founded in 2015, and offers an AI Generated Video service specifically for generating Marketing videos from social networks. Offering a comprehensive range of advertising to offer you the maximum possible exposure with the least technical expertise or time needed. Gapmarks' proprietory software uses the latest AI models and direct in-house video generation on custom algorithms which gives you a key advantage over similar platforms whereby unique videos are usually given priority at the top listings. After many years of refining AI Models specifically for promotion on social networks to drive traffic we have created a software which fills the niche of AI Generated Videos for Marketing for the current market. Use it to promote your products, company or brand in a way unlike ever before. Integrate with all social networks and let Gapmarks post your video for you every day, its simple and easy.Starting Price: $49 / month -
2
Grammarly
Grammarly
Compose bold, clear, mistake-free writing with Grammarly’s AI-powered writing assistant. Grammarly now organizes your writing feedback by theme, so you can see how each change will help your readers better understand your message. Get corrections from Grammarly while you write on Gmail, Twitter, LinkedIn, and all your other favorite sites. From grammar and spelling to style and tone, Grammarly helps you eliminate errors and find the perfect words to express yourself. Get started for free and find out what you can accomplish with the power of Grammarly at your fingertips. With Grammarly Business, every member of your team can compose credible, mistake-free writing that makes your business look good. Every email, web page, and social media post makes an impression on your customers. With Grammarly, you can be confident it's the right impression. High-quality writing is more than just mechanics. Grammarly Business goes deeper with real-time suggestions for improving readability.Starting Price: $12 per month -
3
Krater.ai
Krater.ai
Krater.ai is a comprehensive and user-friendly platform that offers a range of AI-powered tools and services. Our platform provides a powerful alternative to all major AI services, tools and apps in one convenient and elegant location. You no longer need to switch between multiple apps and accounts that have different log-ins and pricing plans. With Krater.ai, you can generate 100% plagiarism-free content in a matter of seconds. Our AI-powered tool and templates ensure that your content is always original, allowing you to focus on creating high-quality content that resonates with your audience. Whether you're a marketer, content creator, or small business owner, Krater.ai has a pricing plan that suits your needs. We offer competitive pricing plans that are tailored to meet your specific requirements. Plus, we have a free plan that you can try out without the need for a credit card.Starting Price: $7 per month -
4
AIDetectPlus
AIDetectPlus
We are the only AI Detector and Humanizer That Works With Essays, Blogs, and Papers! We have specialized AI detection and Humanizer tools for Students, Teachers, Professors, and Marketers. And it works effortlessly on ChatGPT, Gemini, Claude, or any GPT model generated content. We are the only tool that also explain how they work - we explain how and where we detected AI in your content and how we removed the AI content to make it sound more human. We are also the only detector & humanizer tool that takes a one-time payment for your credits, that means they NEVER EXPIRE! You only pay us again if you need more credits. Why Choose Us over a ton of other tools/services? As I said, ours is the only tool that has specialized detectors and humanizers based on your needs - essays, blogs, papers, or social content! ONE-TIME PAYMENT for your credits - Unlike other tools, our credits never expire! PAY ONCE, USE FOREVER. You only pay us again if you need more credits.Starting Price: $5 (One-Time) for 5000 Credits -
5
Genaios
Genaios
Genaios offers tools that empower users to verify the authenticity of online content swiftly. Their AI-driven solutions include a Chrome plugin and web application designed for fact-checking and AI-text detection. The fact-checking feature automatically retrieves sources that support or refute specific claims, aiding in the identification of misinformation and disinformation. The AI-text detection tool determines whether a text was authored by a human or generated by AI, identifying the specific large language model family, such as GPT, Llama, or Copilot. This functionality is particularly useful for uncovering AI-generated reviews in online shops and bot-written comments on social media. Both tools currently support English, German, and Spanish, with plans to expand to additional languages. Our mission is to encourage critical thinking with AI and also detect whether a text has been written using AI. -
6
Writer
Writer
Writer is the full-stack generative AI platform for enterprises. We make it easy for organizations to deploy AI apps and workflows that deliver impactful ROI. Our integrated platform consists of our top-scoring Palmyra LLMs, our highly accurate graph-based RAG, AI guardrails to enforce brand and compliance rules, easy-to-use development tools, and a library of prebuilt apps, extensions, and desktop experiences to get started quickly. With Writer, enterprises build highly-customized AI apps that accelerate growth, increase productivity, and enable AI compliance. Our enterprise-grade platform can be deployed flexibly, keeps your data private, and adheres to global privacy laws and security standards.Starting Price: $29 per user/month -
7
Content at Scale
Content at Scale
Content at Scale is an AI content writing platform that empowers SEO marketers to create high-quality, engaging, and fully original content in a scalable and efficient manner. Its advanced AI technology can generate long-form, research-backed 2,500+ word SEO blog posts in just five minutes, crawling Google on the spot to parse top-ranking content and put together an entire long-form SEO blog post. This is not an AI writing assistant, but a human-level long-form machine. With over 40 million words produced per month by users, it can write long-form SEO content for any industry and general informational search terms. By adapting to its innovative AIO model, Content at Scale helps agencies and marketers save 10-25x on the typical time and cost of human-only content creation. Its user-friendly interface makes it easy for anyone to create content structured for search, even those with no prior experience in SEO content. Content at Scale also offers an AI content detection tool.Starting Price: $250/month -
8
Leap AI
Leap AI
Create beautiful images effortlessly with AI Image Generator tool by Leap AI AI Image Generator tool by Leap AI helps you create stunning images from text prompts, which can be useful for various purposes such as marketing, content creation, and personal projects. It ensures you have high-quality visuals to enhance your work. To get the best results, provide detailed and descriptive text prompts. The more specific your input, the more accurate and visually appealing the generated images will be.Starting Price: $7 per month -
9
Sapling AI Writing Assistant
Sapling Intelligence
AI writing assistant for customer-facing teams. Sapling sits on top of CRMs and messaging platforms to help agents more efficiently compose personalized responses. Managers gain conversational insights to coach and prepare teams. Sapling provides functionality for autocomplete, spelling and grammar checking as well as snippets/canned messages/text expander. All services can be self-hosted, provided on-premise or cloud-premise to meet enterprise security and privacy requirements. Spelling and Grammar checking APIs allow users to integrate Sapling's language models into custom applications and use cases. Sapling Suggest retrieves relevant responses from a team knowledge bank and allows agents to respond more quickly to customer inquiries by simply clicking on the desired response. Empower agents instead of providing brittle, decision tree-based chatbots.Starting Price: $25 per month -
10
Copyleaks
Copyleaks
We’re a leading AI text analysis platform dedicated to empowering businesses and educational institutions as they navigate the ever-evolving landscape of genAI through responsible AI innovation, balancing technological advancement with integrity, transparency, and ethics. Since our founding in 2015, we’ve harnessed the power of AI to empower authenticity and originality. With an award-winning suite trusted by millions, we ensure AI governance and responsible AI adoption, safeguard IP, confirm copyright compliance, and maintain academic integrity with comprehensive content detection. Copyleaks, where technology meets integrity. The AI Grader By Copyleaks is a cutting-edge AI test grader that boosts efficiency, reduces errors, removes all bias, and accurately grades thousands of tests in minutes.Starting Price: $7.99 -
11
GPTZero
GPTZero
GPTZero turns the very technologies used to build ChatGPT around — to detect AI. It uses variables like perplexity to fingerprint AI involvement. GPTZero is committed to keeping a version of GPTZero classic permanently free and accessible for any human to use. Try out yourself the original demo that everyone on the internet is talking about. We're building a tailored solution for educators to responsibly adopt AI-technologies in schools.Starting Price: Free -
12
Kazan
Kazan
So this is a totally free content optimizer based on co-relation to the top 10 Google results for any given keywords, this includes entities, NLP, and it’s totally transparent without hiding or making up keywords for you to optimize. That’s right, you heard it, a free forever and unlimited content optimizer. It grabs the top 10 results in google for any given phrase, extracts its content (including anchors), and co-relates its content to find similarities of keywords they use if there’s a consensus of the majority of the results (6 or more) it then adds it to a list of keywords you should include into your content, it averages it out the occurrences of those keywords in the top 10 results and it guides you into including those keywords into your content. Unlike competitors, we will be free forever and unlimited. The tool's in development, any features you want to be added post them in the FB group. You should optimize your articles more than once to keep up with the top performers.Starting Price: Free -
13
Illuminarty
Illuminarty
Detect AI-generated images, synthetic, tampered images, and deep fakes. We offer various functionalities to help our users understand the generation of images through AI. Check whether or not an image has been AI-generated, from which AI model it has been generated, and which regions of the image have been generated. Find out the probability of AI generation for a given image. Illuminarty combines various computer vision algorithms to provide the likelihood of the image being generated from one of the public AI generation models. Find out the probability of AI generation for a given text. Illuminarty combines various NLP algorithms to provide the likelihood of the text being generated from one of the public AI generation models. We denote the specific passages from the given text that are most likely the result of AI generation. We are working on a web browser extension that lets us use our detectors while we surf on the internet.Starting Price: $10 per month -
14
SciSpace AI Detector
SciSpace
Catch GPT-4, ChatGPT, Jasper, and other AI writers’ presence in scholarly content. Academic integrity is everything even though we’re living in the time of AI writing assistants. SciSpace’s AI detector helps you identify human from artificial in scientific literature. Pair our output with further investigation and ensure you maintain authenticity in academia. Whether you have freeform text or an essay saved as a PDF, you can get quick and easy AI detection reports. All you need to do is paste your content in the text editor or upload your doc. Our AI detector is tailor-made for essays, assignments, and papers. With an accuracy of 98%, it gives reliable results, which should be enough, along with your judgement. for you to take appropriate action. Receive and download a comprehensive report on the whole document as well as on a sentence level, highlighting how much and the parts that are AI-generated text. Edit them and bring down the AI-content score.Starting Price: Free -
15
AI Detector Pro (AIDP)
AI Detector Pro
We scour the latest outputs from ChatGPT and other AIs every day and constantly update our recognition algorithm. If you find an AI detector that performs better, send us the results for your money back. AIDP detects AI in English, Spanish, and German documents. From there, it highlights text in your document that triggers AI detectors. For English text, it also shows you text that AI models predict and and highlights overused AI words and phrases.Starting Price: $13.99 -
16
Nuanced
Nuanced
We detect AI-generated images to protect the integrity and authenticity of your service. AI-generated spam, abuse, and fraud are on the rise. User-generated content platforms are contending with an increased amount of fraud, deepfakes, and inauthentic content. Advanced models generate content that appears authentic and convincingly human-like, making it difficult for established systems to distinguish between genuine human-authored artifacts and AI-generated content. Our algorithms stay ahead of the accelerating changes in AI content generation. Our research team is at the forefront of building scalable models to detect AI-generated content. Our API allows integrators to quickly and easily leverage state-of-the-art AI models so you can focus on your business. Many existing systems compromise user privacy by collecting and utilizing personal data without clear consent. We believe in privacy-first solutions.Starting Price: $29 per month -
17
AI or Not
AI or Not
Detect AI-generated images & audio for your business and yourself, with AI or Not. Check for generative AI in seconds to reduce fraud rates and prevent the latest scam. Protect music copyright by detecting if an artist’s voice was used in AI-generated audio. Empower your trust and safety team with AI content detection. Identify deepfakes with accuracy and transparency. Safeguard identity verification and KYC compliance against AI-generated synthetic IDs. AI or Not is a web service that helps users quickly and accurately determine whether an image has been generated by artificial intelligence (AI) or created by a human. If the image is AI-generated, our service identifies the AI model used. We offer the AI or Not API for bulk image analysis and seamless integration into your platform. AI or Not is free to use for analyzing single images. We offer a premium API service for bulk image analysis or commercial use.Starting Price: $5 per month -
18
Detecting AI
Detecting AI
Discover unparalleled accuracy and ease with our AI checker, trusted by experts for superior AI content identification. Highlights each AI-written sentence, showing the percentage of AI used in the text visually. Engineered for unmatched precision, our AI checker accurately identifies AI-generated content efficiently. Designed for ease of use, our intuitive interface ensures a smooth, straightforward user experience. Begin identifying AI-generated content right away without any account setup. Your submissions stay confidential. We never store or share your data. Our ai checker provides comprehensive coverage of various AI models, enabling us to identify AI-generated content created by ChatGPT, Gemini, Jasper, Claude, and other similar models. We continuously train our system to detect new models like GPT4 automatically, ensuring that our AI detector stays up-to-date with the latest AI technology advancements.Starting Price: $5 per month -
19
OpenAI Output Detector
Hugging Face
This is an online demo of the GPT-2 output detector model, based on the 🤗/Transformers implementation of RoBERTa. Enter some text in the text box; the predicted probabilities will be displayed below. The results start to get reliable after around 50 tokens.Starting Price: Free -
20
Winston AI
Winston AI
Winston AI is an advanced AI content detector software specifically designed for the publishing and education industries. It comes equipped with powerful features such as plagiarism detection, OCR (Optical Character Recognition), report generation and file management capabilities. Winston AI can detect text generated by popular AI writing tools such as ChatGPT, Jasper, Copy.AI, Writesonic and many more, with unprecedented accuracy.Starting Price: $14 per month -
21
ZeroGPT
ZeroGPT
ZeroGPT is the most accurate and reliable tool to detect AI written content, like ChatGPT generated content. -
22
Enago Reports
Enago Reports
Enago Reports represents an extensive collection of reports that harness the capabilities of advanced artificial intelligence. These reports play a crucial role in assessing and enhancing the quality, integrity, and impact of multiple categories of documents in a fast, accurate, and detailed manner. Leveraging the extensive expertise accrued by Enago over 17 years, it efficiently enhances any document to ensure it achieves its maximum potential impact. It is tightly integrated with Trinka.ai, an AI-powered complete writing assistant. Together, it creates a tech ecosystem in which one can seamlessly work with Enago Reports and Trinka to maximize productivity in writing and evaluating manuscripts. Enago is a part of the Crimson Group which has been a trusted name in author services including top-notch English editing, localization, translation, transcription, and much more since 2005. Enago has supported 2 million+ authors in 125+ countries, enhancing their research communication fStarting Price: $12 per month -
23
WriteHuman
WriteHuman
WriteHuman is an AI detector and humanizer tool. Turn AI-generated text into human sounding writing that will bypass AI detection.Starting Price: $12 per month -
24
Advacheck
Advacheck
Advacheck is a comprehensive solution for originality verification and plagiarism detection, designed for academic institutions, research organizations, and corporations. Key features include: Text Analysis: AI-powered algorithms verify originality by comparing text with an extensive database of academic publications and web content. Cross-Language Detection: Identifies plagiarism across different languages. AI Content Detection: Detects AI-generated text to support academic integrity. Image Verification: Compares visual content against a growing database of images from articles and user collections. LMS Integration: Seamlessly integrates with Moodle, allowing assignment checks directly within the learning platform. Reports & Customization: Generates detailed reports with sources and allows for tailored detection settings. Advacheck ensures high standards of data security and privacy, compliant with international regulations.Starting Price: $9 -
25
Turnitin
Turnitin
Ensure original work from students and address even the most sophisticated potential misconduct. Give instructors tools that streamline manual grading processes, so they can spend more time teaching. Help develop students’ original thinking skills with high-quality, actionable feedback that fits easily into teachers’ existing workflows. Address the originality of student work and emerging trends in misconduct with this comprehensive solution. Deliver and grade all types of assessments from anywhere using this modern assessment platform. This robust, comprehensive plagiarism checker fits seamlessly into existing workflows. This high-stakes plagiarism checking tool is the gold standard for academic researchers and publishers. This high-stakes plagiarism checking tool is the gold standard for academic researchers and publishers. Turnitin partners with global educators to share smart, creative instructional practices. Explore our blog, teaching tools, guides, white papers, and more. -
26
Blackbird.AI
Blackbird.AI
Powered by our AI-driven narrative intelligence platform, organizations can proactively understand digital threats in real time for strategic decision-making when it matters most. The risk landscape has dramatically shifted for every industry. Our suite of solutions provides actionable risk intelligence for our customers and partners. Online audiences are being influenced in ways that have never been seen before by a new generation of actors and techniques. Listening tools are not enough. Quickly encapsulate narratives with daily risk intelligence summaries, providing real-time insights and empowering strategic decisions. Fine-tune your AI-generated narrative intelligence reports with the power of human context and enhance the relevance, accuracy, and strategic value of your insights. Enhance decision-making with data-driven recommendations tailored for a wide variety of problem sets, use cases, and personas. Accelerated reporting for intelligence professionals, saving time and effort. -
27
DuckDuckGoose AI Text Detection
DuckDuckGoose
Check for content generated by AI text generators from sources like ChatGPT, Bard, Llama, or others. Our detector helps you determine its authenticity. Maintain content integrity and ensure you're always ahead. Our AI Text Detection software specializes in identifying content generated by ChatGPT, Bard, Llama, and more. Ensure the authenticity and reliability of text data by detecting AI text effectively. Researchers can rely on our AI Text Detection to identify AI-generated content in scholarly articles and research papers. Ensure the credibility of your academic work. News outlets can rely on our AI detector to verify the authenticity of news articles. Detect AI-generated news content and maintain trust with your readers. As the use of AI text generators becomes increasingly prominent, empower your content strategy with our AI content detector designed to identify, verify, and ensure the authenticity of every word. -
28
Rephrasy
Rephrasy
Elevate your AI writing with Rephrasy's industry-leading human writer. Paste your AI content and we'll do the rest. Pass AI detection with ease. Ensure your content is not flagged as AI. Make sure to get your content past AI detectors like GPTZero, Copyleaks, Turnitin, and more. Bypass AI detection with the world's most powerful AI stealth text humanized. Keep your AI writing undetectable with the world's best AI detection remover. No grammatical errors or low-quality output. Rephrasy offers the highest quality outputs in the industry. If you're not satisfied, you'll be able to re-humanize for free. Maintain your privacy and don't get flagged by AI detectors. Rephrasy is the best AI detection remover tool in the industry. Transform your essays, research papers, and dissertations into polished, human-like writing that bypasses AI checkers and maintains academic integrity. Rephrasy is the best AI detection remover for academic writing.Starting Price: $12.99 per month -
29
SynthID
Google
We’re beta launching SynthID, a tool for watermarking and identifying AI-generated images. SynthID is being released to a limited number of Vertex AI customers using Imagen, one of our latest text-to-image models that uses input text to create photorealistic images. With this tool, users can embed an imperceptible digital watermark into their AI-generated images and identify if Imagen was used for generating the image, or even part of the image. Being able to identify AI-generated content is critical to promoting trust in information. While not a silver bullet for addressing the problem of misinformation, SynthID is an early and promising technical solution to this pressing AI safety issue. This technology was developed by Google DeepMind and refined in partnership with Google Research. SynthID could be expanded for use across other AI models and we plan to integrate it into more products in the near future. -
30
Compilatio
Compilatio
Compilatio is a provider of academic integrity solutions. Thanks to Compilatio Magister+, our antiplagiarism software for teachers, you can detect all forms of plagiarism: AI-generated content, similarities, obfuscation, and more. → AI-generated content detection: detect texts potentially generated by a generative AI such as ChatGPT or Bard. → Similarity detection: detect similarities between the analyzed text and found and/or added sources. → Altered texts detection: Identify attempts to conceal plagiarism, such as character substitution. Compilatio Magister+ integrates with several LMS platforms: Moodle, Canvas, Brightspace (D2L), Microsoft Teams