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Best Five AI Proofreaders

AI proofreaders have become an essential part of the writing process in content marketing, academics, and even everyday life. This has become especially true with the rise of LLM-powered chatbots like ChatGPT. However, one must ask, are these AI proofreaders any good? 


Well, that is a complicated question to answer. With the rise of LLMs, AI proofreading typically means copying and pasting text into ChatGPT alongside a prompt asking the chatbot how you want the text to be edited. For example, “ChatGPT, make this text sound more academic in tone” or “ChatGPT get rid of all punctuation errors in this text.”  


However, LLM-powered proofreaders are only a few years old. Before that, we had an entire generation of proofreading software that did not rely on LLMs. So now, we are confronted with two questions. Is ChatGPT better than this previous generation of proofreading software? In this article, we look at five AI proofreaders and see how they compare to ChatGPT.


The AI proofreaders we are going to look at include:


  • QuillBot

  • Grammarly 

  • Wordvice AI

  • ProWritingAid 

  • PerfectIT 


They are divided into traditional proofreading software that existed before LLMs and those that can be described as AI-powered proofreading tools or writing assistant tools. I look at the pros and cons of all five proofreading tools and summarize the essential features of each. 

An image of a blue robot.

1. QuillBot

QuillBot can be described as being among the most advanced and popular AI-powered proofreaders. It is a software that includes traditional proofreading abilities and functions, such as spell-checking and grammar corrections. However in addition to this, it is also used for other functions that we associate with AI. This includes the following:


  • AI detection

  • AI writing

  • AI paraphrasing

  • AI humanizer

  • Plagiarism checker 


In short, it is a complete package that the average student and academic would find useful. The plagiarism checker makes it convenient for students to check their plagiarism scores. AI detection helps to determine what percentage or likelihood of your writing being written by AI, something that more and more universities are demanding to ensure that students are producing original work and not simply relying on ChatGPT to write their essays. 


AI writing allows students to write their content from scratch using a few prompts, as is the case with ChatGPT. The AI paraphraser is also an essential tool for students and academics, as students are frequently required to paraphrase academic studies when writing their own essays. There is a certain level of irony in QuillBot offering the AI humanizer.


This is a tool that allows you to turn your AI-generated text into something that sounds more human. Now, how much can you rely on an AI humanizer to turn the same AI text that it generated into something that sounds human? In any event, QquillBot is an easy-to-use and versatile tool. 


It can be used as a:


  • Word plug-in,

  • Chrome plug-in, and

  • directly in the window of the QuillBot website. 


In addition to this, QuillBot is a partner company to Scribbr, and Scribbr allows students to use some of the features of QuillBot such as its grammar checker and paraphrase both free of charge for basic features, while allowing them to pay for the premium features. QuillBot is available at the standard price of $19.95 per month. 


2. Grammarly

Grammarly is one of the oldest and most popular AI proofreaders. Should we hesitate to call it AI? After all, Grammarly has been in existence for more than a decade before AI became such a buzzword with the emergence of LLM-powered software such as ChatGPT. Well, LLM and chatbots like ChatGPT are one type of AI.


AI technology can be described as any system that can perform tasks that usually require human knowledge or intelligence, such as problem-solving and decision-making. Grammarly and other traditional proofreading software not empowered by LLMs fit this description. They can make suggestions regarding grammar and punctuation corrections that a professional human editor would.


Grammarly is famous for how versatile it is as a traditional proofreading software. It can be used as a Word plug-in; however, it is more popular as a Chrome plug-in. This is all the more impressive when considering the low pricing for Grammarly at $12 per month. It can be used more or less in any window that allows writing. That means you can use it to correct your writing in: 


  • Emails

  • Social media

  • Cellphone text messaging

  • Google Docs

  • Etc. 


Grammarly has been doing this for so long and so well that it comes across as a natural part of whatever software that you are using, whereas other software doing the same can feel like spam. However, the major con of Grammarly is that while it is excellent for social media and business writing, it is not ideal for academic writing, unlike QuillBot. 


3. Wordvice AI

Wordvice AI is a proofreading software owned by Wordvice, a proofreading company based in South Korea. It is similar to both QuillBot and Scribbr. In terms of the similarities with QuillBot, it includes a number of AI-powered tools such as: 


  • Plagiarism checker

  • AI detector

  • AI paraphraser

  • AI writer

  • AI humanizer


Just like Scribbr, many of these features are embedded in their Wordvice AI website, which means text can be uploaded and copy and pasted in the window of the website. The standard pricing for WordviceAI is $19.99 per month. 


4. ProWritingAid

ProWritingAid is more than just an AI proofreader. It can be described as developmental editing and copy editing aid. This software tool can be described as an online editing and grammar software created to assist writers to improve several aspects of their writing, including their:


  • Style

  • Grammar

  • Clarity


It is primarily a tool for creative writers or novelists. The tool provides writers with detailed analysis, suggestions, and reports that evaluate a writer’s work. It serves also as a writing coach that proffers insights into issues such as:


  • Readability

  • Repetition

  • Sentence structure


In addition, it provides comprehensive explanations on how writers can repair issues and improve their writing skills. The tool also offers AI-powered features that we associate with the new cutting edge writing assistant tools such as a plagiarism checker. ProWritingAid has one of the highest subscription fees at $30 per month. 


5. PerfectIt

PerfectIt can be described as being part of the first generation of proofreading software. It has none of the AI-powered features in the newer writing assistant tools such as a plagiarism checker or AI detector. Instead, it is a basic proofreading software that is ideal for lengthy academic documents. 


PerfectIt uses several ready-made style guides that you can automatically apply throughout any document. However, unlike most of the other proofreading tools, it can only be used in Microsoft Word. There are a multiple styles available in PerfectIt: 


  • American Legal Style

  • United Nations Style

  • WHO Style

  • Australian Government Style

  • UK Spelling

  • Canadian Spelling


PerfectIt even includes the option of the CMoS style guide, which is more expensive. Each of these styles is applied by the tool to ensure that the writing in your Word document complies to your chosen style guide. This includes grammar, capitalization, spelling, and heading and subheading formatting.


In addition, with PerfectIt, the available style can be customized. For example, if you choose the US style for your document, you can customize settings to make sure you keep “ise” spellings that one typically expects of the UK instead of the US. PerfectIt is relatively cheap compared to the other tools at $9 per month. 


The table below provides a summary of the differences between the give different AI proofreaders included in the article: 


AI Proofreader

Monthly Price (reg.)

Quarterly Plan 

Semi-Annual Plan

Annual Plan

Main Pro 

Main Con 

QuillBot

$19.95

$13.33

NA

$8.33

Ideal for academic writing 

Stilted AI writing suggestions

Grammarly

12

NA

NA

NA

Ideal for business writing

Bad at academic editing

Wordvice AI

$19.95

NA 

$15.95

$9.95

Ideal for academic writing 

Stilted AI writing suggestions

ProWritingAid

$30

NA

NA

$10

Ideal for creative writers 

Most expensive option 

PerfectIt 

$9

NA

NA

NA

Ideal for academic writing

No AI writing tools 


ChatGPT as a proofreader 

ChatGPT is popular as a proofreader. This is true both in the world of academic writing and content writing. However, this popularity does not mean that it should be blindly adopted as a proofreader. ChatGPT is best used as a chatbot that can answer basic questions, for which information is easily available on the Worldwide Web.


The main problem with using AI tools to edit or even write content is their hallucinations. This means they make stuff up and are unable to verify them, even while they answer you with confidence. ChatGPT relies on LLM, whose data is based on everything available on the Internet. By now, anyone who spends five minutes on the Internet knows that the information is not “refined.” 


This is in contrast to proofreading software, which is trained specifically on data collected from highly qualified and professional human editors making several thousand corrections on academic texts. Therefore, basic proofreading tools like PerfectIt would be more reliable. 


In short, while ChatGPT might be quicker and easier, its results as a proofreader may simply be a reflection of the hallucinations that is such a huge feature of the app. 

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AI proofreaders vs human proofreading 

A major question that people will be interested in is whether or not AI proofreaders can replace human editors. AI proofreaders are attractive as the cost of a professional editor is much more expensive than proofreading software. While a human editor can charge between $30 to $70 per 1000 words, proofreading software is a monthly subscription that can be as low as $20 per month.


And this is the case for editing an unlimited number of words every month. However, you should not give in to the temptation. A tool is only as good as the person wielding it. In fact, many of these proofreading tools were designed for professional editors. The best of these tools work by making suggestions that can either be accepted or rejected.


To know whether or not you should accept or reject these suggestions requires knowledge. This knowledge can only be attained through study, practice, and training. AI proofreaders, unfortunately, are no substitutes for that. 

Cite this EminentEdit article

Antoine, M. (2025, September  17). Best Five AI Proofreaders. EminentEdit. https://www.eminentediting.com/post/ai-proofreaders





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