Can ChatGPT Proofread Documents?

ASK THE EDITOR: "Can ChatGPT Proofread?"​

Can ChatGPT proofread documents? To answer the question, yes and no.

Many people are asking about ChatGPT and its proofreading abilities. When contemplating that question, think in terms of could and should. It is a mistake to simply answer “yes” as others have done, when the answer is far more complex than “can” or “cannot.” (In fact, it is more complex than yes OR no, as we argue it is yes AND no.)

As this article will explain, for many writers, trusting a human editor is a better choice. The answer for you depends on a few different factors, which are discussed in detail below.

Could ChatGPT proofread your document? 

In simple terms, the answer is yes — for some documents. Artificial intelligence continues to make great improvements, and like spellcheck or auto-correct, it does a fairly good job. If AI checks a document, errors are bound to be found so you can correct them. In that sense, AI is capable of finding simple errors in simple documents.

“Simple” errors include things like typos, missing grammatical marks, or misspellings. A “simple document” is one where the audience is general and the text is relatively short. 

However, it should be noted that “yes” is limited to some documents. AI is not recommended for all proofreading and editing tasks. Consider the chart below to compare which documents are best suited for AI and human editing.

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Artificial Intelligence

$ 20 per month for GPT-4
  • Individual Sentences
  • Emails
  • Casual Letters
  • Brief Summaries
  • Website content


Human Editing

$ 3 00 per 100 words
  • Business Documents
  • Disserations
  • Novels
  • Academic Research
  • Journal Articles

Beware of ChatGPT Errors

Complexity leads to errors in ChatGPT. One study claims an accuracy percentage of over 85%. That might seem “good” at first glance, but consider an illustration: Imagine your bank account was miscalculated by roughly 15%. You would be concerned, bothered, and upset. (In fact, even 1% would probably be worrisome, since your money matters to you.)  

ChatGPT makes a variety of errors. AI does not do well with nuanced tone (such as for what’s needed for marketing) or long documents (such as academic research). For example, if ChatGPT is used to proofread a long document, it could still take hours to review all of the changes, since not all changes are wanted or warranted.


Real-World Examples of AI Errors
Example of AI Error

AI vs. Human Editing: Consider the Length

Long documents are especially problematic, since many AI tools have word limits. For example, you cannot easily have ChatGPT review a long article without breaking it into pieces — which can be time consuming. As a professional editor, PaperBlazer edits a lot of books, and breaking into short segments would take ages. Such word limits can be cumbersome and prohibitive. For example, we asked ChatGPT to check an 8-page article, and ChatGPT gave the following error message.

ChatGPT Error Message:

ChatGPT Proofreading Error Message

ChatGPT can work fine for short documents. Let’s say you have a 150-word email that you need to check. In that case, ChatGPT could easily handle a text of that size. Simply enter your text, and the site can proofread for you. 

It should be noted that word limits apply to older versions of ChatGPT. Newer versions, such as ChatGPT-4, expand the word limit, but again, there are caveats. For example, ChatGPT-4 is part of the plus subscription, so that will be a $20 fee per month. On top of that, you are limited to a number of submissions per hour, so again, there are limits to consider.

If you want to try for yourself, you can test AI with our instant grammar checker: Test ChatGPT proofreading. It’s a free way to see if artificial intelligence can do what you need. In most cases, you’ll need more, which is why PaperBlazer offers human editing service

However, there’s more. When proofreading, “could” is only one aspect to consider. Your words matter, so we are not merely talking about capability. Of course, quality also matters. That leads us to the next question . . .


Should ChatGPT proofread your document? 

The answer to this is more complicated. For some writers, using AI is enough. Let’s say you’re writing a five-sentence email to a friend. Or maybe you’re writing a birthday card. In those instance, sure, an automated check might suffice. A computer could catch any glaring errors. (As we’ve discussed elsewhere, some documents are better for human proofreading, and some are better for AI — so “should” depends on the document type.)

Professional proofreading, by a human, is ideal for:

    1. Creative writing, including books, as creativity is a distinctively human trait; you cannot rely on “artificial” means, since AI does not have actual intelligence but predicts based on previously written material — and that, by definition, is not creative.
    2. Business documents and marketing materials targeting specific audiences, as the investment in human proofreading will yield greater returns. There’s no wisdom in cutting corners with business documents.
    3. Research papers, where precise grammar is crucial and can be ensured by an expert reviewer.
    4. Cover letters and applications, as they require a relatable “human voice” and should be tailored for specific recipients (e.g., particular employers).
    5. Lengthy texts (longer than a couple of pages), as AI tends to overuse words or ideas.
    6. Crucial documents where quality is essential; enlist the assistance of a professional for superior outcomes.

AI proofreading is suitable for:

    1. Generic emails, due to their short length and broad context.
    2. Basic social media posts, which can be easily checked by users.
    3. Initial drafts, such as examples that can be later revised.
    4. Technical writing that lacks creativity or emotion, such as instruction manuals.
    5. Short paragraphs, as redundancy is less likely in brief texts.
    6. Informal documents of lesser importance, since a computer could do fine.

As noted above, there are many cases where ChatGPT should not be proofreading documents. Let’s say you are trying to be persuasive. You want to convince the school board… You are applying for a new job… You want to run for political office… You need to persuade a landlord… You want to attract more customers. In situations like those, relying on a machine may not be the best choice. AI can guess at what might be said but not necessarily predict accurately.

Furthermore, in our testing, ChatGPT makes crucial mistakes at points, such as missing commas when they would be helpful and misunderstanding the context. For example, when asked to summarize House Made of Dawn, ChatGPT confused Momaday’s book with a Chinese text — thus introducing factual errors. If this were used for an exam, for example, it would lead to a failing grade.

Another example can be seen in the image. We asked ChatGPT to count the errors in a known problematic text with glaring errors. However, ChatGPT responded with “There are no grammar errors in the text.” Proof of this is provided in the screenshot above. The trouble is that some writers would not know the difference; the only person qualified to “outsmart” AI is a professional editor.

Human editing provides more in-depth analysis, especially considering the setting and wider context. A human editor, therefore, is more likely than ChatGPT to consider the “sense” of a text in a given situation. For example, you will want to write differently to a boss or colleague than you would to a friend.

Take note.Writing also requires feeling — especially influencing the feelings of readers — and try as it may machine learning will never master “feelings.” This should not surprise. Artificial intelligence is based upon predictive text, not human emotion. So ChatGPT makes a guess, based upon probability, but for important documents, a human should check the text for accuracy.

Elsewhere, we have shared about how to proofread ChatGPT. Here the point is that human editors play an essential role, and leaving machines on their own is never a good idea. Of course, AI will mature over time. To use a metaphor, you wouldn’t leave your kids with a babysitter during an emergency — since the babysitter is not ready for that challenge. In a similar manner, when you have an emergency, such as working with an important text that is due within a few days, AI needs to be supervised. 

Speaking of metaphors, ChatGPT does not do well with figures of speech either, which is a primary element of communication and human thought. As Lakoff and Johnson pointed out in Metaphors We Live By, metaphors are ingrained within human thought. So if writing without metaphor, we lose an essential aspect of communication.

Notice that when we consider “Should ChatGPT proofread?” we are asking an ethical question — that is, should or should not? When considering issues of intellectual rights (plagiarism), transparency, disinformation, regulation, aesthetics, and a host of other ethical questions, we should pause before rushing ahead. In many cases, users should forgo artificial intelligence in preference for actual intelligence. 

The Better Question to Ask Yourself

As discussed above, the question is not simply “Could ChatGPT proofread my document?” Even the question “Should ChatGPT proofread for me?” can be quite complex, especially when you consider ethical issues. For that reason, perhaps the better question to ask is this: “How important is this document to me?”

If you’re dealing with a casual, unimportant, or temporary document — such as a text message or a tweet — then you might be fine with automated editing. However, if you’re writing a formal, important, significant document, then you should forgo automation and use human-powered editing. That’s why we at PaperBlazer say, “Go beyond AI. Go PRO.” After all, you deserve the best, so never settle for a computer when a human editor can help.

The more important the document is to you, the more you should consider human editing. For years, we’ve believed in a simple principle: “Invest in your words, and your words will thank you.” That’s been a motto of ours for over 10 years. So, when you have important documents, such as business marketing materials, a novel, or a dissertation, then rely on a professional editor — since that will lead to the best results.

When you think about the importance of your document, remember that ChatGPT is impressive but not perfect. In our extensive tests, ChatGPT faults in a number of ways:

  • overly robotic tone, especially when voice could be effective
  • lack of creativity and variety compared to human writers
  • technical errors, when the output stops unexpectedly
  • incorrect information, such as introducing irrelevant content and, in some cases, wrong facts
  • overlap and repetition, often giving the same information again (e.g., your text can be very similar to others)
  • overly generic responses, such as giving the same advice to multiple users
  • predictable organization — lacking surprise and revealing the artificial source
  • absence of newness, since AI uses prediction based on previously written content

If you’re worried about AI making a mistake, or if you’re concerned about AI’s many limitations, try professional editing service instead. You will quickly see the benefits of having a human review the text and take it to the next level.

A Final Consideration: Speed

Lastly, if you need to save time, human editing can actually be faster than AI. How can that be, you ask? Computers can be incredibly fast, but they often leave work for you to do — such as reviewing and applying the changes.

To explain this further, here is a simple breakdown:

  • AI is faster for short texts: AI is faster for short documents, such as a sentence or paragraph. Results are available within seconds. You can then review and apply those changes as you see fit. It might take a few minutes to review the changes in a paragraph, but it is something you can do on your own.
  • Human editing is faster for long texts: Human editing is far more efficient for documents longer than a few pages. (Of course, this is in terms of your time, not total time.) Because human editors make changes for you, there is less for you to do. You don’t need to spend hours reviewing ChatGPT or Grammarly suggestions, since a professional does all of that work for you. Even if the human editors review the document for a few hours, for you, it’s a matter of seconds.
In summary, human editors apply changes for you, thus saving you precious time in the long run. There is far less for you to check, review, or update, as you would need to do with something like Grammarly. When a real, professional editor helps you, changes can be applied for you — thus making proofreading and editing not only easier but faster.
Fast proofreading service — 1 hour, 12 hours, 24 hours, 24/7. Quick turnaround for any document or paper.
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