RealWriteAI

AI Detector with sentence-by-sentence explanations

Most detectors hand you a percentage and leave you guessing. RealWrite highlights the sentences that read as AI, tells you which pattern each one fits, and suggests a fix.

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Try it on the home page without an account, up to 100 words. Free accounts get 500 words a day. Check text without an account

AI DetectorExample
AI likelihoodAI-generated

Furthermore, remote teams report higher satisfaction across most industries. My own team went back to the office four days a week in May, and two people left within a month. The tools are simple. The meetings are short. The results are clear. Flexibility — more than salary — is now why people stay. It is worth noting that outcomes may vary depending on various factors.

  1. 1Stock transition

    Fix: Drop it, or say how this follows from the last point.

    Fix this sentence

  2. 2Uniform sentence length

    Fix: Join two of them, or add a detail to one.

  3. 3Em dash habit

    Fix: Use commas, or split it into two sentences.

  4. 4Generic hedging

    Fix: Name the factor, or cut the sentence.

How it works

  1. 1

    Paste your text

    Paste an essay, an article or an email. Nothing to install and nothing to format first.

  2. 2

    Read the score and category

    You get an AI likelihood score and one of four categories: “AI-generated”, “AI-generated & AI-refined”, “Human-written & AI-refined” or “Human-written”.

  3. 3

    Open the highlights

    Flagged sentences are highlighted in place. Each one says which pattern it fits and how to fix it, and “Fix this sentence” rewrites just that one.

The four patterns it explains

A flagged sentence always comes with a reason. These are the four the detector names, with the kind of fix it suggests.

Uniform sentence length

The plan is clear. The goals are set. The team is ready.

Sentences of the same length in a row read like a template. Join two, or break a long one where you would pause.

Stock transition

Furthermore, the results indicate a positive trend.

Words like “Furthermore” and “In conclusion” add nothing. Drop them, or name the actual link between the two ideas.

Em dash habit

The answer — as it turns out — is simple.

Heavy use of dashes for asides is a common model habit. Commas, brackets or a new sentence usually read better.

Generic hedging

It is important to note that results may vary.

Vague cushioning that commits to nothing. Say what varies and why, or cut the sentence.

Examples written by our team.

What you get with every check

  • AI likelihood score

    One number for the whole text, so you can see at a glance whether it leans human or machine.

  • A category, not just a number

    The result is placed in one of four categories, “AI-generated”, “AI-generated & AI-refined”, “Human-written & AI-refined” or “Human-written”, which tells you more than a score on its own.

  • Highlights with reasons

    Each flagged sentence names the pattern it fits. You can read it and judge for yourself whether the flag is fair.

  • A fix for every flag

    Every highlight comes with a suggestion in plain words, the kind an editor would write in the margin.

  • One-click “Fix this sentence”

    Rewrite a single flagged sentence with the humanizer and leave everything around it alone.

  • Free to try

    Check up to 100 words on the home page without signing up. A free account gives you 500 words a day.

Why RealWrite

We would rather tell you what the tool won’t do than oversell it.

What it does

  • Scores the whole text and assigns a category
  • Highlights the sentences behind the score
  • Explains each flag with one of four patterns
  • Suggests a fix and can apply it to one sentence

What it won’t do

  • Claim to be right every time (no detector is)
  • Give you proof that a person did or did not use AI
  • Rewrite anything unless you ask it to
  • Hide why a sentence was flagged

Who it’s for

  • Writers checking their own work

    Find the sentences that sound generated before someone else does, and fix them in your own words.

  • Students

    See whether your essay leans on the habits that get text flagged, like stock transitions and padded hedging, and learn to spot them yourself.

  • Editors and content leads

    Review freelance or AI-assisted drafts faster. The highlights show you where to look instead of rereading the whole piece.

  • Anyone using the humanizer

    Check the rewrite before you use it, and fix any sentence that still reads flat.

Questions about the AI Detector

Yes. You can check up to 100 words on the home page without an account, and a free account gets 500 words a day. Paid plans give you more: Essential 30,000 words/mo, Pro 100,000 words/mo and Business Unlimited words/mo.

No AI detector is right every time, ours included. Treat the score as a signal, not a verdict. That is why we show the reasons: you can read a flagged sentence and decide for yourself whether it fits the pattern.

AI-generated means the text reads as written by a model. AI-generated & AI-refined means a model wrote it and it was then polished by a model. Human-written & AI-refined means a person wrote it and a model edited it. Human-written means it reads as a person’s own writing.

People use the same habits models do, especially in formal or template-driven writing. The highlights show which sentences triggered the score and why, so you can change those and leave the rest.

It sends that one sentence through the humanizer and puts the rewrite back in place. The rest of your text is not changed.

Not on its own. A detector score is not evidence that someone used AI. If you review other people’s writing, use the highlights as a starting point for a conversation, not as a ruling.

More writing tools

See all tools

Compare word allowances on the pricing page, or read our writing guides on the blog for more on how AI text gets spotted and how to edit it.

Try the AI Detector on your own text.

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