ZeroGPT

Detect AI-generated text and highlight suspicious passages

4 min read Updated Sep 13, 2026

Our verdict Situational

Buy ZeroGPT Pro at $9.99/month only for frequent, low-stakes draft screening.

Buy it if you area freelance editor screening routine AI-assisted drafts

Skip it ifyou need evidence for academic, hiring, or payment decisions

If you need to check whether a draft looks AI-generated, ZeroGPT gives you a quick probability score and flagged text.

Skip a paid subscription unless you need frequent, low-stakes checks; the decision hinges on its $9.99 monthly Pro price, cheaper than GPTZero, with fewer safeguards.

Who it's for

ZeroGPT suits you if you need a fast first-pass screen for raw AI copy. You will be disappointed if you need evidence before rejecting a writer, student, or applicant.

Buy it if

  • You review unedited AI-assisted blog drafts before your own editorial pass.
  • You want a second opinion on copy from freelancers before publishing it.
  • You need to upload batches of routine text files instead of checking them one at a time.

Skip it if

  • You must make academic, hiring, or client-payment decisions from a detector score.
  • You already use GPTZero and need more consistent results on formal writing.
  • You work mainly with lightly edited AI copy or non-native English writers.

Your first hour

You can run a basic scan without an account. A paid account needs payment details, and the vendor does not publish a trial; a first result typically appears within seconds.

  1. Open the detector Paste text or upload a file, with the free check capped at 15,000 characters.
  2. Run a scan A typical scan takes about 2 to 3 seconds after submission.
  3. Read the score ZeroGPT returns an AI probability and highlights text it considers suspicious.
  4. Save the report Paid subscriptions can generate a PDF detection report for your records.

The learning curve is close to zero, but interpreting a probability score takes judgment.

What you actually get per plan

ZeroGPT has a free tier and monthly or annual subscriptions. Most solo users who pay will land on Pro for larger scans and batch checks, while Plus matters if you need recurring plagiarism checks; API use is separately metered by words.

Plan Price What’s inside Catch
Free Free 15,000 characters per detection, 5 batch checks, 1,000 ZeroCHAT-4 prompts Small batch allowance
Pro $9.99/month 100,000 characters per detection, 50 batch files, 2,000 ZeroCHAT-4 prompts Plagiarism allowance is 750 words one time
Plus $19.99/month 100,000 characters per detection, 60 batch files, 25,000 plagiarism words monthly Summarizer remains capped at 1,500 words
Max $26.99/month Up to 150,000 characters per detection, 75 batch files, 40,000 plagiarism words monthly Higher limit is reported differently on some pricing sources
Enterprise Quote Custom terms Public limits are not published

The free tier has a hard limit of 15,000 characters per AI detection.

Three real situations

These are the situations where the subscription either earns its place or becomes another unused tab.

A freelance editor with three retainer clients

Pro costs $9.99 a month and allows 100,000 characters per detection. Use it to triage obvious AI drafts, but do not treat its score as grounds to accuse a client’s writer.

A creator with a weekly newsletter

The free 15,000-character scan will usually cover one newsletter draft. The simpler route is to use that free check and manually edit the copy, not buy a subscription.

A two-person content agency

Plus costs $19.99 monthly and includes 25,000 plagiarism-checker words each month. It helps screen incoming articles, but lightly edited AI text can produce unreliable detector results.

Where it falls short

Reviewers report high false positives, especially on formal writing and work from non-native English writers. They also report inconsistent scores on repeat scans and weaker results on lightly edited AI text. GPTZero is more often the safer comparison for high-stakes work because reported false-positive rates are lower.

The free interface is widely described as ad-heavy, and some users report slow or unresponsive support. Paid limits can also surprise you, particularly Pro’s one-time 750-word plagiarism allowance. The vendor says submitted text is not used to train its detector, but account and technical data are still collected under its privacy policy.

Watch out: Monthly refund requests must be made within 6 hours of purchase. After that, cancellation stops renewal but does not refund the current billing period.

Common questions

Is there a free ZeroGPT plan?

Yes. The free plan allows up to 15,000 characters per AI detection and 5 batch file checks.

Can I cancel ZeroGPT any time?

Yes. Sign in, open Subscription under My Account, select Cancel subscription, and confirm it. Cancellation prevents future renewal.

Does ZeroGPT train on my text?

The vendor says submitted text is not saved, shared, published, or used to train its AI detection model. It says text is discarded after processing.

What is the cheapest way to try ZeroGPT?

Use the free detector without an account for a scan of up to 15,000 characters. The vendor does not publish a paid trial.

Is ZeroGPT worth it for a freelancer?

It is worth $9.99 monthly only for frequent, low-stakes draft screening. For decisions about authorship or misconduct, use manual review and a more consistent tool such as GPTZero.

Bottom line

Buy ZeroGPT Pro at $9.99 monthly only if you need frequent, low-stakes checks on obvious AI drafts. Skip it for client disputes, academic work, or hiring decisions, where its reported false positives make the score too risky to trust.