Where do I paste a draft?

On the DetectGPT homepage. No account, 3,000 words per run, text or a public URL.

Does DetectGPT detect ChatGPT, Claude, and Gemini?

It scores finished writing from those models and others. DetectGPT is the brand, not a ChatGPT-only checker.

Will this match Turnitin?

No. DetectGPT is a public self-check. Turnitin’s AI indicator is a campus classifier. They will not print the same percentage.

How many words do I need?

At least 50, at most 3,000 per run. Split anything longer.

Is a high score proof I used AI?

No. It says the prose looks machine-made. Careful human writing can look even. Heavily edited model writing can look mixed.

Can I check a website?

Yes. Use Analyze URL on DetectGPT for a public page, including a homepage.

Guide

How DetectGPT Scores a Draft: Percentage, Highlights, Then You Rewrite

September 7, 2026

If you needed a self-check tonight, DetectGPT is the free AI writing checker. This page is the decoder for that report: what DetectGPT is counting, how the highlights work, and why the number is not a confession.

Students search this the night before a paper is due. Bloggers search it when a client pastes the draft into Originality.ai and still says Turnitin. Teachers search it when a paragraph sounds like a press release. The job is the same: look at the words on the page and see how even they are.

You can do that in a browser. DetectGPT takes a paste or a public URL, up to 3,000 words, and returns a percentage plus yellow, orange, and red lines. No account. No school login.

This guide covers what DetectGPT measures, how the score and highlights are produced, where the number lies, and what to do after. If you already have a percentage and need the bands, that is how to read an AI writing score.

Check a draft on DetectGPT

If the draft came from ChatGPT, Claude, Grok, or Gemini, paste it here or drop in a public page URL and we'll score how much of it still sounds like a model, with a 3,000-word cap and no account in the way. We aren't Turnitin and we don't search a paper archive, so treat this as a self-check on rhythm rather than an official campus report.

Open the checker

At a glance

Factor	Quick answer
The job	Score how machine the finished draft sounds
Tool	DetectGPT, free AI writing checker at detectgpt.io
Input	Paste 50 to 3,000 words, or a public URL
Output	A percentage plus highlighted lines
Not	Proof of cheating, or a reprint of Turnitin
Next step	Rewrite the marked lines in your own voice

You are checking the page, not the chat

Language models pick the next likely word, which leaves a fingerprint of even sentence length, generic transitions, and adjectives that never take a side. An AI writing checker scores those habits on the draft you paste. It does not open ChatGPT, Claude, Grok, or Gemini, and it never sees the prompt.

That is why “can Turnitin detect ChatGPT” and “how to check if text is AI” are cousins rather than twins. The campus product lives inside an assignment. DetectGPT is the public box you can open without a seat. Does Turnitin detect ChatGPT is the school version of this question.

OpenAI retired its own AI text classifier in 2023 after it proved too unreliable as a verdict machine. Treat every public score, including DetectGPT, as a map of stiff lines rather than a courtroom stamp.

How DetectGPT runs the score

Open the DetectGPT homepage. Stay on Text checker for anything you can copy. Paste at least 50 words so the score is not noise, and stay under 3,000 words or split a longer chapter. Hit Check AI score and wait for the report.

If the words already live on a public page, use Analyze URL. Homepages and articles work. Login walls, PDFs, and apps do not. DetectGPT pulls readable text and scores that, which is useful when you do not want to strip a post by hand.

If the worry is copied wording rather than machine tone, that is a different job: the free plagiarism checker. Brand-new ChatGPT prose can score low there because it never lived on a public page.

Read the lines, not just the badge

The percentage is the share of the prose that still looks generated. Under about 20% is a weak signal. Twenty to fifty is mixed. Over fifty, a chunk of the draft still talks like a model. How to read an AI writing score unpacks those bands without turning them into a pass/fail chart.

Highlights mark about that same share of the text. Yellow is mixed. Orange is likelier. Red is the stiffest. Unmarked lines are the rest. Start rewriting with red and orange, keep the facts, and change the voice until you could say the paragraph out loud without sounding like a brochure.

Two checkers will not print the same number. DetectGPT vs ZeroGPT is the reminder that public dashboards are siblings, not copies, and none of them reprint a campus Turnitin indicator.

Where an AI check gets it wrong

Short scraps, citation-heavy literature reviews, lab methods paragraphs, and careful second-language English all share the tidy rhythm a model also likes. A high score can be a false alarm. A low score can miss a heavily edited chat.

Paraphrase tools rarely wipe the signal. Swapping synonyms keeps the skeleton. Can Turnitin detect ChatGPT if you paraphrase is often yes for that reason, and DetectGPT will still mark the even lines.

If a grade or a contract hangs on the result, keep dated drafts and be ready to talk about the paragraph. Can Turnitin be wrong is the campus version of the same warning.

What to do after DetectGPT scores it

Rewrite the marked lines in the voice you would use at a desk. Do not hunt a cloak, a synonym spinner, or a promised bypass. Those leave the same even sentences the checker already watches.

Keep a copy of each version. If someone asks how the draft got there, the trail matters more than a screenshot of a kind dashboard.

If the sentences are still stiff after you know which ones they are, HumanizeAIText is the rewrite step from the same company. DetectGPT tells you where. HumanizeAIText is the pass that tries to make those lines sound like a person.

FAQs

Where do I paste a draft?: On the DetectGPT homepage. No account, 3,000 words per run, text or a public URL.
Does DetectGPT detect ChatGPT, Claude, and Gemini?: It scores finished writing from those models and others. DetectGPT is the brand, not a ChatGPT-only checker.
Will this match Turnitin?: No. DetectGPT is a public self-check. Turnitin’s AI indicator is a campus classifier. They will not print the same percentage.
How many words do I need?: At least 50, at most 3,000 per run. Split anything longer.
Is a high score proof I used AI?: No. It says the prose looks machine-made. Careful human writing can look even. Heavily edited model writing can look mixed.
Can I check a website?: Yes. Use Analyze URL on DetectGPT for a public page, including a homepage.

The bottom line

DetectGPT is a style pass on the finished draft: a percentage plus the lines that still sound generated, which you can run without a school login.

Paste the words on the homepage, read the highlights, rewrite what you could not say out loud, and keep a copy of each version.

DetectGPT is the free AI writing checker for that job.

Try DetectGPT free today

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