Review
GPTZeroChecked by Vetteroo review
Teachers.
We check it out so you don’t have to.
Disclosure: Some links on this page are affiliate links. If you buy through them, we may earn a commission at no extra cost to you. We only recommend things we believe are useful. Read our full disclosure.
- What it is
- AI writing detector
- Best for
- Teachers who want to check writing for AI
- Price
- Free; paid from $12.99/month yearly, checked October 30, 2026
- Prices checked
- October 30, 2026
We researched GPTZero's official pricing, terms, product pages, help pages and outside reviews. We haven't used GPTZero ourselves, so this is a research-based review, not a hands-on test.
Who it’s best for
- Teachers.
- Editors.
- Hiring teams.
Who should skip it
- Probably not the best fit for final decisions about a person on its own.
How it works day to day
This part draws on GPTZero’s own product pages, help center and documentation, read October 30, 2026 (listed under Sources). We haven’t used GPTZero ourselves.
Paste or upload text, read the AI probability, and review highlighted passages.
Key features in use
- AI scan
- Highlights
- Reports
- Chrome extension
- API
Setup and learning curve
Minutes.
Integrations
None.
Support
Help center.
Real-world use cases
- Classrooms
- Editing
- Publishing
- Hiring
What it costs
Prices checked October 30, 2026, from GPTZero’s own pricing page unless noted. Prices change often, so check the official page before you buy.
- Free plan with 10,000 words/month; Premium $12.99/month billed annually; Professional $24.99/month billed annually; team plans from 2 seats (checked October 30, 2026).
- Refunds by request to support.
What we like
- Free tier.
- Chrome extension.
- Writing reports.
- API.
What to watch for
- Trustpilot showed 2.1 out of 5 as of October 30, 2026, a weak score we disclose; read recent reviews before you buy.
- AI detectors can wrongly flag human writing.
- Annual billing for best price.
- Refunds not guaranteed.
The fine print
- Never treat a detector score as proof on its own.
- Using AI writing or detection tools on schoolwork may break your school's rules; check the policy first.
The main alternative: Winston AI Checked by Vetteroo
Winston AI is another AI detection tool.
What it costs: Essential $10/mo billed yearly, checked October 30, 2026
Read our full Winston AI review
Pick GPTZeroChecked by Vetteroo if you…
- want a free tier.
- teach classes.
- want a Chrome extension.
Pick Winston AIChecked by Vetteroo if you…
- want plagiarism checks.
- want image detection.
- want another opinion.
Our take
GPTZero is a popular AI detector, but its weak Trustpilot score and the limits of AI detection call for caution.
Side by side
| Company | Best for | Starting price | Trial / refund |
|---|---|---|---|
| GPTZero Checked by Vetteroo | Teachers who want to check writing for AI | Free; paid from $12.99/month yearly, checked October 30, 2026 | Refunds by request |
| Winston AI Checked by Vetteroo | Teachers and editors who mainly check for AI-written text | Essential $10/mo billed yearly, checked October 30, 2026 | Free 14-day trial |
From our company records. Check the official pages for current prices.
What we checked
- GPTZero's pricing, product pages and terms, read October 30, 2026
- GPTZero's Trustpilot profile, read October 30, 2026
- Winston AI's details: from our published review and its official pages, October 30, 2026
- The other official and outside pages listed under Sources (links checked October 30, 2026)
Sources
How we review
We read the company's own terms, test the sign-up or booking steps where we can, and compare it with alternatives. A commission never changes what we write. Read our disclosure.
Disclosure: Some links on this page are affiliate links. If you buy through them, we may earn a commission at no extra cost to you. We only recommend things we believe are useful. Read our full disclosure.