Style engine · not model ID
ChatGPT AI detector (GPT-4 and GPT-5 style score)
People search for a ChatGPT detector, a GPT-4 detector, or a GPT-5 detector when a draft sounds like a chat model: stock openers, even sentence length, filler adjectives, and em dashes. OmniKit scores those tells in the browser. A high score means the prose matches common ChatGPT-style patterns. It does not prove which model wrote the text, and it does not replace a plagiarism check or a conversation with a student.
What this page actually measures
The scanner looks for phrase lists, rhythm, repetition, and structure that show up often in assistant drafts. GPT-4 and GPT-5 outputs still trip many of the same tells because those models were trained to be fluent and polite. OmniKit does not watermark-decode OpenAI text. If you need a classroom queue, use Classroom AI Checker for CSV export. If you need cadence cleanup, use Content Humanizer after you accept that detectors remain heuristics.
Teachers, students, and academic writing
College and K–12 searches often pair “ChatGPT detector for teachers” with academic integrity. Treat this tool as a pre-review checklist. Short samples under-score. Quoted literature can look formulaic. A student who outlines by hand and then pastes a model paragraph will still light up flags on that paragraph. Do not treat a number as proof. Do not ask OmniKit to bypass Turnitin. The honest workflow is: score, talk about process, then edit.
How to use the paste box
Paste at least a full paragraph. Run the scan. Read sentence highlights and the flag list. If the score is high and you own the draft, open Humanizer or rewrite specifics only you know. If you are reviewing someone else’s work, export notes from Classroom AI Checker instead of this single-paste view. Related landings for Gemini and Claude use this same engine on purpose so we do not pretend to fingerprint vendors.
Same engine as the AI Writing Detector and Classroom AI Checker. Paste below.
What is an AI writing detector?
An AI writing detector scores a draft for stylistic tells common in ChatGPT-style prose — words, stock openers, em dashes, and flat sentence rhythm. A high score means the text matches those patterns. It does not prove which model wrote it, catch a watermark, or replace a plagiarism check.
OmniKit’s detector runs locally. No API key. No rewrite spend. Use it as a pre-publish checklist, then humanize if the flag list is dense.
Examples
- “In today’s landscape” plus delve, leverage, furthermore.
- Em dashes as a tic in every sentence.
- One-sentence pastes that under-score because the sample is too short.
How it works
How does the AI Writing Detector work?
Paste at least a full paragraph of the version you would publish, run the scan, then read the score and flag list. Fix issues yourself or open Content Humanizer. Re-scan after edits. Detection uses no AI credits.
- 01
Paste the draft you would publish (at least a full paragraph).
- 02
Run the scan for an AI-likelihood score and flag list.
- 03
Fix high-scoring issues yourself, or open Content Humanizer to rewrite.
- 04
Re-scan after edits before you publish.
What does the AI writing score measure?
The score measures how closely the draft matches common machine-style patterns: stock openers, filler words, em dashes, and uniform sentence length. It is not forensic proof of model origin. Humans trip the same tells. Use it to decide whether to edit or rewrite, not to accuse an author.
Detector vs Content Humanizer
The detector shows the tells. Content Humanizer rewrites cadence when flags are dense. Scanning here is free and local. Humanizer rewrites spend monthly AI credits. Academic drafts belong on Researcher Humanizer, not a blog-style rewrite.
How do I lower a high AI writing score?
Cut stock openers, vary sentence length, swap vague claims for a named detail, and drop filler adjectives. If flags stay dense, run Content Humanizer, then add something only you know. Cleaning style is not hiding plagiarism or fake citations.
- Short samples under-score | paste a full section, not one sentence.
- This is not a watermark detector; it flags stylistic tells OmniKit also uses in Humanizer.
- Paste the final draft you would publish | not a rough outline.
Frequently asked questions
What is an AI writing detector?
An AI writing detector scores a draft for stylistic tells common in ChatGPT-style prose — words, stock openers, em dashes, and flat sentence rhythm. A high score means the text matches those patterns. It does not prove which model wrote it, catch a watermark, or replace a plagiarism check.
Is this a free AI content detector?
Yes for stylistic AI writing tells. It scores patterns common in ChatGPT-style prose. It does not claim forensic proof of model origin.
Is a high score proof the text is AI-generated?
No. It means the draft matches common AI style patterns. Humans can trip the same tells; use it as a pre-publish checklist.
Does scanning use AI credits?
No. Detection is local. Only Content Humanizer rewrites consume shared AI credits.
How do I lower the AI writing score?
Cut stock openers, vary sentence length, remove filler words, and prefer concrete nouns over vague abstractions | or run Content Humanizer.
Related tools
Keep measuring in the same cluster — or jump to the next decision.
When a style score is enough
Use the detector when you want a pre-publish checklist, not a rewrite. A high score means the draft matches common ChatGPT-style patterns — words, em dashes, flat rhythm. Humans trip the same tells. Fix them yourself, or open Content Humanizer when the flag list is dense.
