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Catalog copy checks

AI Product Description Detector for Listing Copy

Paste a marketplace listing, product page, or catalog field into this AI product description detector. Slop or Not checks the English copy for language patterns associated with LLM output, then returns a probability for review. Online, the pasted text first goes to Numen's server for a hidden-character scan, is processed in memory, and is discarded with the response, so nothing is stored. The separate AI check runs on Numen's private Mac server, and the text is deleted after processing. The iPhone, iPad, and Mac apps run both checks on-device.

Catches 99.5% of AI text at a 5% false-positive rate, scored by RAID, the public benchmark, not by us.

Paste a paragraph or a whole thesis. The iPhone and Mac apps have no word cap and no monthly word budget.

  • Paste English textSchool essays, product reviews, captions, articles, and social posts up to 20,000 characters.
  • ResultA probability verdict, AI score, and readability analysis.
  • PrivacyDeleted the moment the check finishes. We never keep your text.
English text only. Deleted after processing.0/20000

AI detection is probabilistic. Results can vary with new AI models and evasion methods. Human writing that sounds formal can be flagged as AI.

Scored by a fine-tuned transformer model, not a word-pattern checker.

What it checks

How Does an AI Product Description Detector Read Listing Copy?

Generic benefits that are not tied to the product specifications

Repeated sentence structures across features and selling points

Smooth explanatory phrasing around facts that do not naturally connect

Good Uses

  • Checking seller copy before a marketplace listing goes live
  • Triaging catalog entries that need disclosure or editorial review
  • Comparing a product claim with the specifications and source materials

Limits to Know

  • Specification lists repeat nouns and measurements in ways that can resemble generated copy
  • Brand templates and SEO formulas deliberately standardize human-written listings
  • Translations and very short descriptions leave less reliable language evidence

FAQ

AI Product Description Detector Questions

Does this prove a seller used AI?

No. The result describes the English wording, not the seller's workflow. A person can write formulaic copy, and AI-assisted text can be heavily edited. Review the listing history and source materials before drawing a conclusion.

Why can product specifications look AI-written?

Specifications repeat model names, measurements, and attribute labels. That regular structure gives a text detector less natural prose to evaluate and can raise uncertainty.

Can I check translated or very short listings?

The text detector supports English. Machine translation and short catalog fields can distort the writing patterns it reads, so use longer original English copy when available.

What happens to the listing text online?

The pasted text first goes to Numen's server for a hidden-character scan, is processed in memory, and is discarded with the response, so nothing is stored. The separate AI check runs on Numen's private Mac server, and the text is deleted after processing. The iPhone, iPad, and Mac apps run both checks on-device.

Run the Next Check on Your iPhone or Mac

The Slop or Not app checks images and text on-device, so nothing you check ever leaves your device.

Download on the App Store

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