Freemium

ZeroGPT

AI detection across text, image and video, with sentence-level highlighting.

3.5 Writing
3.5 Good 3.5
Sentence highlighting supports a conversation rather than an accusation AI detection has a documented false-positive problem on non-native English
Reviewed by Challenging Voice Editorial · Updated Aug 2026 How we rate
PricingFree
Free planYes
CompanyZeroGPT
PlatformsAPI, Web
CategoryWriting
Last reviewedAug 2026
Ask AI about ZeroGPT ChatGPT Claude Perplexity

Overview

ZeroGPT detects AI-generated content and shows its working: highlighted sentences marking which parts read as machine-written, using its DeepAnalyse method trained across internet text, educational material and synthetic datasets. Image and video detectors, a plagiarism checker across billions of sources, batch processing, PDF reports and an API sit alongside.

Sentence-level highlighting and PDF reports are what make it usable in the setting that matters most. A single percentage score is not something an educator can put to a student, and a report showing which passages triggered the finding at least supports a conversation rather than an accusation. Batch processing fits marking a class rather than one essay.

There is a free tier at 15,000 characters with MAX and EXPERT subscriptions whose prices are not shown. Two things belong stated: AI detection has a well-documented false-positive problem, particularly on non-native English writing, and a detection score should never be the sole basis for an academic penalty. The site also ships an AI humanizer, a tool for defeating detectors, alongside the detector itself.

Key features

  • AI text detection with sentence-level highlighting
  • DeepAnalyse multi-stage detection method
  • AI image and video detectors
  • Plagiarism checker across billions of sources
  • Batch file processing with PDF reports

Screenshots & demo

ZeroGPT screenshot 1

Pricing

ZeroGPT offers a free plan, with paid upgrades for higher limits and more features.

  • Pricing modelFreemium
  • Starting priceFree
  • Free planYes
Visit ZeroGPT

Pricing is provided as a guide. Check the official site for the latest plans.

Is ZeroGPT expensive?

ZeroGPT has no advertised paid tier. Among the 109 priced tools we list in Writing, the median entry price is $12 a month.

66% of Writing tools in the directory offer a free tier, and this is one of them.

Compared against every priced listing in Writing, recalculated as the catalogue changes. Method and the full market breakdown are in our AI tool pricing study.

Pros & cons

Pros

  • Sentence highlighting supports a conversation rather than an accusation
  • Detects image and video, not text alone
  • Batch processing and PDF reports fit marking a whole class

Cons

  • AI detection has a documented false-positive problem on non-native English
  • A detection score should never be the sole basis for an academic penalty
  • Ships a humanizer for defeating detectors alongside the detector

How it compares

ToolRatingFreeFromBest known for
ZeroGPT (this tool)3.5YesFreeAI text detection with sentence-level highlighting
Dechecker3.7YesFreeSentence-level AI detection across ChatGPT, Claude and Gemini output
Winston AI3.5YesFreeAI text detection claimed 99.98% accurate across major LLMs
Undetectable AI3.2YesFreeAI text detection with flagged sections

Alternatives to ZeroGPT

4 tools matched to ZeroGPT on what they do, their category and their price.

Dechecker

3.7

Sentence-level AI detection across ChatGPT, Claude and Gemini output, paired with one-click humanization rewrites.

Freemium Writing

Winston AI

3.5

AI content and image detection claimed accurate 99.98% of the time – sentence-level highlights, plagiarism checks, and deepfake detection in one report.

Freemium Writing

Frequently asked questions

What is ZeroGPT?
ZeroGPT detects AI-generated content and shows its working: highlighted sentences marking which parts read as machine-written, using its DeepAnalyse method trained across internet text, educational material and synthetic datasets.
Is ZeroGPT free?
Yes, ZeroGPT offers a free plan. Paid plans unlock more features and higher usage limits.
What are the best ZeroGPT alternatives?
The closest matches in the directory are Dechecker, Winston AI, and Undetectable AI, compared side by side above.

Reviews

3.5 Editorial rating No reviews yet

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