Best AI Content Detectors 2025 | Here Are My Top 5 Picks
AI writing is everywhere right now. With generative AI tools such as ChatGPT, creating content is faster than ever (whether it is better, that’s another topic).
This raises a big question: how can you tell which is written by a human and which is AI-generated?
The answer is simple: AI content detectors.
But with all the options out there, how do you know which is the best AI content detector for the job?
Not an easy question, but we will try to help you with this article, so you can find the best AI content detector for yourself more easily without spending time and money.
Let’s dive in!
What is an AI Content Detector | Quick Overview
You can think of it as a type of AI tool that has been trained to detect the signatures of AI-generated content. AI detectors are tools that have been built to detect AI-generated content by examining the writing patterns of the text.
So, how do AI detectors work? AI models that generate text, such as those from Google or OpenAI, have a distinct writing style. Statistically, they will use the same words or patterns of sentence structures.
An AI detector reads the given text and searches for those patterns. It then assigns the user a score, often reported as a percentage, indicating the likelihood of the use of AI-generated text.
The most accurate AI content detectors are currently on newer AI models, which means they are better at distinguishing between human-generated writing and AI-generated text.
But let’s stop it right here and take a look at the best AI content detectors in 2025!
Which AI content detectors are most accurate in 2025?
Here are the top 5 best and most accurate AI content detector tools in 2025:
|
Best AI content detectors |
My Experience | |
|---|---|---|
 |
Most accurate AI content detector tool | |
 |
Best AI content detector for academic writing | |
 |
A simple solution for AI detection | |
 |
A solid AI detector tool | |
 |
A browser extension for accurate AI content detection |
5 Best AI Content Detectors in 2025
Let’s take a closer look at the best tools for detecting AI-generated content!
Originality.AI
Most accurate AI content detector tool
In a remarkably short period, Originality.ai is for those who are serious about content creation and publishing, and it is highly vetted in the industry as the best AI content checker available due to its exceptional detection accuracy.
The tool was specifically designed to help users check for both AI and plagiarism concurrently. And of course, not to mention offering other robust features we’ll talk more about in a minute.
With AI paraphrasing and humanization tools on the rise, Originality AI content detector is perhaps one of the only tools right now that’s very difficult to bypass.
Let’s have a look at some of the key features you’ll come across using this AI content detector.
Key features of Originality.AI
AI content checker: This is its core function. The detection tool is very good at identifying AI-generated content. It scans your text and comes up with a fingerprint pattern map at the scale of a large variety of AI models, against this very same gesture of text production (your text) to assign a score or percent (from 0-100%). This indicates whether the text is likely human or AI-generated. It’s one of the top AI writing detectors because it can detect even content rewritten with AI humanization tools. You’ve probably heard of them.
Grammar Checker: It’s not just about content detection. Originality.ai also helps you refine your writing. The built-in grammar checker is a great addition. It can find and help you fix pesky spelling mistakes, punctuation errors, or even sentences that just don’t sound good. We can both agree that’s vital for content quality.
Fact Checking: In the world of misinformation, this is gold. The fact-checking tool from Originality.ai will help you verify the claims made in your content, which is obviously an important step to take to verify that the content is not only original but also accurate. Being credible and trustworthy builds credibility and trust with your readers and helps to establish one of the most reliable AI content detectors out there.
Plagiarism Checker: This is yet another essential feature. For true uniqueness, you need to know that you are not copying someone else’s work. The plagiarism checker searches the entire internet to see if any part of your text matches existing content. This plays an important role in maintaining SEO and protecting your brand as trustworthy.
Content Optimizer: It doesn’t just help you write good content – getting your content visible is just as important. The content optimizer tool helps you do just that. It analyzes your text and gives recommendations for enhancing your readability and where you might improve your SEO. This aims to improve the readability and ultimately rank on search engines to drive traffic to your website.
Originality.AI Pricing
Originality.ai uses a pay-as-you-go credit system. The base package is a one-time payment of $30, which gets you 3000 credits. One credit = one word.
They also don’t have a recurring free plan; however, you can kick the tires with a trial for just $1, which gets you 100 credits.
Pros & Cons of Originality.AI
Pros:
- One of the most accurate AI detectors in the industry
- It is an all-in-one AI assistant, including plagiarism/grammar check
- Great for professional content creators.
- Includes a helpful fact check and content optimizer
- Clear and simple numeric score that is easy to understand
- Can detect AI content written by a human
Cons:
- The credit system may not work for everyone.
GPTZero
Best AI content detector for academic writing
GPTZero was one of the first big names in AI detection and is still a fantastic choice, especially in education. It was built by a student from Princeton called Edward Tianor. It’s a tool originally meant for students and teachers.
This AI detector is good at performing in-depth analysis of text and will highlight sentences that are likely AI-generated content. It is awesome if you want detailed feedback on a document and want to know exactly what part of the document is likely not sourced from original work.
It is a top choice for an AI content detector and has been widely considered one of the very best in the industry.
Key features of GPTZero
AI Detection: GPTZero has one of the best AI detectors in the industry. You’d not be far from the truth to say it goes shoulder to shoulder with Originality.AI. It has a really clean dashboard and is pretty straightforward to use with no learning curve. When you paste in your content, it gives you a percentage score and also detailed feedback so you know exactly the portions of the content that were AI-generated or human-written.
Batch Scanning: If you’re an agency or brand, you likely have a lot of content to check in terms of AI and plagiarism every now and then. In those cases, a feature like batch scanning offered by GPTZero comes in very handy. It allows you to scan multiple documents all at once.
API: An API is more like an add-on that helps you integrate really well with other platforms or software, with the goal being to increase your workflow. So, if you use several platforms as a team for content creation, you’d find GPTZero API integration really helpful to stay on track.
Plagiarism Check: Honestly, it makes no sense for an AI content detector not to have a plagiarism checker, because they both complement each other. The good news is, GPTZero hasn’t disappointed in this regard. You’re provided with a powerful plagiarism checker that compares your text to billions of texts on the internet.
Writing Feedback: A lot of AI tools in the industry, like Sapling, ZeroGPT, and others, would normally just give you a percentage score and stop there. You get more than that from GPTZero, thanks to the detailed writing feedback feature it offers. It gives you a full picture of the content, so you know exactly which paragraphs or sentences were AI-generated.
GPTZero Pricing
GPTZero offers a free plan that allows you to scan 10,000 words per month without any restrictions. Their paid options start at $10 per month for the “Essential” plan (billed yearly), which allows 150,000 words and advanced features, including batch scanning for processing large volumes of content.
GPTZero Pros & Cons
Pros:
- One of the most reliable choices to identify AI-generated content
- Highlights sentences likely written by AI
- Useful for academic and educational use
- Simple user interface
Cons:
- Sometimes, flags human-written content as AI-generated (false positives).
- Some may find the analysis too detailed for a quick check.
Winston AI
A simple solution for AI detection
Winston AI is yet another name that’s often mentioned when it comes to AI content detection, and that’s for a good reason. It’s a relatively simple tool that is very similar to Copyleaks and Originality.AI.
You can upload your content to the dashboard, import it from a URL, or simply paste it in. For an accurate detection score, you’ll need to paste in at least 300 characters.
Aside from its AI detector, you’ll also get a plagiarism checker, an AI image detector, and a feedback assistant, all in the same tool.
Key Features of Winston AI
AI Content Detection: Winston AI can accurately detect AI-generated content. It provides a simple score that indicates how likely it is that the text was written by either a human or an AI.
AI Image Detector: One unique feature of Winston AI is its ability to detect AI images (also known as deepfakes). In an era of widespread misleading and false visual information, this tool is invaluable.
Readability Score: The program also has a document score to inform you of the readability of the text. This can be a score as to how easy it is to read and comprehend what’s written.
Plagiarism Checker: As an additional useful tool, Winston AI contains an originality checker. This lets users check their content’s originality against millions of online sources.
Feedback Assistant: Winston AI includes a writing feedback assistant, which can help improve quality.
Team Management: If you are a business or an educational institution, Winston AI has team management features. You can make projects, share documents, and reports with other team members.
Winston AI Pricing
Looking at its price, it’s pretty flexible depending on your needs. It has a free plan, where you can test the waters with 2000 free words for a period of 14 days when you sign up.
The essential and advanced plan sits at $15 and $23, respectively, monthly. The former gets you 80,000 credits while the advanced plan offers 200,000 credits.
Winston AI Pros and Cons
Pros:
- The AI detection is quite accurate
- It comes with a plagiarism and AI image detector
- The tools are very clean and easy to use
- Affordable paid plans depending on your goals
Cons:
- The free plan is very limited
Copyleaks
A solid AI detector tool
Copyleaks is a strong contender that goes shoulder to shoulder with Originality and ZeroGPT when it comes to spotting AI content. It’s an enterprise-level tool that’s great for universities, agencies, and businesses globally. One of the things that really nailed out Copyleaks is that it detects AI content in multiple languages.
There is also a powerful API option for businesses that may want to integrate the detection tool into their systems. Copyleaks combines AI detection with a plagiarism check tool for teachers and schools, as boldly specified on their website.
Key features of Copyleaks
Multi-Language AI Detection: One of the most useful features for Copyleaks is its ability to find AI content across multiple languages, enabling it to reach a global audience.
API: Copyleaks offers a robust API that enables companies to integrate the detection tool into their existing workflows and systems.
LMS: Copyleaks has LMS connections with all major Learning Management Systems (LMS), so they have easy access for educators to check for AI and plagiarism from the online learning space with student submissions.
Code Plagiarism Checker: Copyleaks has the potential to offer “Codeleaks”, a plagiarism detection service for programming code that can be useful for computer science education and software development agencies.
Plagiarism: As you would expect from the name, Copyleaks offers a complete plagiarism check that would be an important part of their offering for education.
AI Grader: Copyleaks also has an AI grader that can help with scoring assessments, providing feedback, and saving educators a great deal of time.
Copyleaks Pricing
Copyleaks uses a credit system. They have a free version available with limited access, where you can scan a fair number of words daily when you’re using the Chrome version.
Paid plans are flexible, with options starting at around $9.99 monthly for just the content detector. For AI detection and plagiarism, you’ll need to spend $16.99 per month. These prices get you 100 credits.
Copyleaks Pros and Cons
Pros:
- Excellent for businesses and educational institutions
- Works with multiple languages
- API integration available
- Detects content from a large range of AI content generation sources
Cons:
- Potentially more expensive for individuals
- The interface can be a bit intimidating for first-time users.
Sapling AI
A browser extension for accurate AI content detection
I’d like to start by noting that Sapling AI isn’t really a dedicated AI content detector. However, it still manages to offer a decent AI content scan if you’re a freelancer who needs to check if the content is human-written or generated with AI.
What I’m trying to say is that this is obviously not a tool created for a heavy content workflow, so it’s really not suited for agencies or schools. The AI content detection dashboard is really simple, if it’s too simple, actually, as some would say.
It’s essentially a blank canvas for you to add your content. It gives a percentage score that states whether the content is original or fake. It’s not the most advanced AI content detection tool out there.
Yes, especially when compared to the likes of Copyleaks, GPTZero, and Originality. Sapling also offers other features like a grammar checker, rephraser, chat assistant, and autocomplete.
Key Features of Sapling
AI Content Detection: Sapling offers a basic yet serviceable AI content detection tool, providing a simple percentage score.
Grammar Checker: One of Sapling’s key features is an all-in-one grammar and spelling checker, designed to significantly enhance your writing quality. In addition to this, there is the rephrasing tool specifically aimed at helping users rewrite sentences to improve clarity, tone, and style.
Chat Assistant and Autocomplete: Sapling also has a chat assistant and autocomplete ability. These features work on all platforms using the Sapling app and help users speed through their writing.
Browser Extensions and Integrations: Sapling is widely available using browser extensions for Chrome, Edge, and Firefox, making it simple to have access to all of Sapling’s features. Sapling is also integrated into other platforms like Gmail and Outlook, thus providing efficient writing solutions within the CRMs and helpdesks as well.
Sapling Pricing
Its paid plan is a bit steep considering the features it offers and what’s on the table from other competitors like Originality and ZeroGPT. It offers a free plan, which is very limited to 200 words per scan. Its pro plan is $25 monthly, but comes down to $12 if you’re paying annually.
Sapling Pros and Cons
Pros:
- It’s a decent tool for a freelancer
- Offers a relatively good AI content detector
- The tool is very easy to use
Cons:
- It’s not the best choice for agencies, schools, or brands
- The AI-detection analysis is not very advanced or in-depth
- The paid plan is at the high end compared to other alternatives
Final Thoughts: Best AI content detector in 2025
Alright, we’ve come to the end of this post. Following all that’s been said up to this point, it’s easy to see that the best AI content detector depends on your specific needs.
If you are an agency, freelancer, or publisher looking for the best AI content checker that ticks all the boxes, then Originality is the best choice.
Given the rapid development of AI content, even the best of these content detectors will need to evolve as time goes on.
Nevertheless, the AI content detection tools we’ve mentioned here are some of the best in the industry.
Frequently asked questions
What is the most accurate AI content detector?
Originality.AI is a good choice for detecting AI-generated content. It provides accurate outputs, and it is one of the most advanced AI detection apps currently, with a user-friendly interface.
How to identify AI-generated content?
To check whether the content is generated by AI or human-written, you need to use AI detector tools. There are numerous paid and free AI detector tools on the market. One thing to keep in mind when choosing a tool is.
You have to make sure that it is up to date, since there are so-called AI humanizers, which can bypass AI detectors that were not updated.
Which is the best AI detection tool or website?
While it depends on your preferences, Originality.AI, GPTZero, and Winston AI are some of the best tools you can use for detecting AI-generated content.
Hey there! I am Aron, the founder of Thebusinessdive. With my website & YouTube channel, I reach 25.000 -35.000 people monthly with the mission to help you find the perfect productivity apps. Subscribe to my YouTube channel to hear more about the best productivity tools. Let’s dive in!