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AI writing tools have proliferated over the last few years, and the launch of ChatGPT in November 2022 opened the floodgates to the masses. Suddenly, companies such as Google and TurnItIn were put on high alert as AI-generated content flooded the internet and classroom submissions. The evolution of AI tools that mimic human writing was so fast and sudden that society was not prepared yet to detect the content generated by these tools. However, a few tools have been launched to help detect AI content.
| Originality.AI | GPTZero | Copyleaks AI Detector | Writer.com | Hugging Face | GLTR | |
| Detects | GPT-4/GPT-3 | GPT-3 | GPT-3/GPT-4 | GPT-2/GPT-3 | GPT-2 | GPT-2 |
| Input Type | Text | Text | Text | Text | Text | Text |
| Accuracy | 9/10 | 8/10 | 7/10 | 6/10 | 3/10 | 3/10 |
| API | Yes | Yes | Yes | |||
| Chrome Extension | Yes | Yes | ||||
| Price | $0.01 per 100 words | Free | Free | Free | Free | Free |
| Originality.AI | GPTZero | Copyleaks AI Detector | Writer.com | Hugging Face | GLTR |
What Are AI Content-Writing Tools?
AI content writing tools take advantage of the latest iteration of AI language models (GPT) to imitate human writing. These tools include ways to auto-generate advertising copy, long-form copy, headline ideas, and more.
The goals of these platforms are to help with:
- Copywriting
- Ad copy
- Marketing copy
- Content creation
- Emails
- Headlines
and much more.
Many of these tools offer solutions for initial idea generation (like headline ideas and topic ideas) as well as content creation (outlines, paragraphs, and full-length copy).
Who Can Use AI Detection Tools?
AI detection tools can be used by anyone who is trying to determine with a written piece of content was generated by a human. Whether you are a teacher trying to detect whether a student submitted an original essay or a website owner wanting to make sure that the article your freelance writers submitted is original.
Overview of AI Detection Tools
Below are several of the leading AI detection tools.
Originality.ai
Originality AI is one of the leading AI text detection tools. By copying and pasting the alleged AI-written content into the editor, Originality AI will give you a percentage prediction of how likely the content was written by a human or machine.

Features
Originality.ai touts itself as one of the most accurate AI detection tools. It works for Chat GPT, GPT-2, GPT-3, GPT-4, Google Bard, and Quillbot (a paraphrasing tool). It is able to identify AI content with an accuracy of 96%. The fact that it was designed for web publishers means it strives to protect website owners from AI-generated content being created by their freelancers.
Integrations
Originality.ai has a Chrome plugin so that you can use it in your existing workflow and also comes with an API so you can build custom solutions for your workflows or other writing tools.
Pricing
Originality’s pricing is fairly straightforward with credits where 1 credit scans 100 words and each credit costs $0.01. Therefore to scan a 1,000-word article, you’ll spend 1000/100 * $0.01 = $0.10.
About the business
Originality.ai was founded by Jared Bauman, Spencer Haws (investor), and Jon Gillham.
GPTZero
Another great AI detection tool is GPTZero. It boasts over 1 million users, but in our testing, it wasn’t quite as accurate as Originiality.ai.

Features
GPTZero lets you copy and paste text or upload a file to be scanned. File upload types accepted include pdf, docx, and txt files. GPTZero also features an API. One downside is that you have to enter at least 250 characters for the tool to work.
Currently, GPTZero only supports up to GPT-3.4, but GPT-4 support is likely coming soon.
Integrations
The API lets you integrate GPTZero’s technology into whatever applications you want.
Pricing
This is where GPTZero shines. Currently, it is completely free. However, they will require you to register for an account after a few usses.
About the business
Edward Tian, a 22-year-old senior at Princeton University, built GPTZero app to detect whether text is written by ChatGPT.
Copyleaks AI Content Detector
Another great free AI content detector tool is the Copyleaks AI Content Detector.

Features
Copyleak’s AI detection tool is very simple to use. Just enter text in the text box and click “Check.” It can check content created across ChatGPT, GPT4, GPT3, Jasper, and others.
Integrations
Copyleaks’ AI detection tool has a Chrome extension. They also have an enterprise version that includes an API.
Pricing
Copyleak’s AI Content Detector is 100% free. Enterprises can purchase an enterprise version for scaled usage.
About the business
Copyleaks came to fruition when Yehonatan Bitton, Co-founder and VP of R&D, discovered that competitors were plagiarizing the website content of his family’s business, resulting in a significant drop in the business’s visibility and sales.



