Choose GPTZero if you need
- Google Docs. We haven't found it on Originality.ai's website.
- Integration with Canvas. We haven't found it on Originality.ai's website.
At a glance
- Both have a free plan.
- GPTZero's lowest paid plan is Premium at A$17.99 per month, billed annually, as of November 14, 2026.
- Originality.ai's lowest paid plan is Pro at $12.95 per month, billed yearly, as of November 14, 2026.
- Both are available on Chrome.
- Only GPTZero lists Google Docs.
- Only Originality.ai lists Firefox and Moodle.
- Both work with Google Classroom and Google Docs.
- GPTZero lists SOC 2 and GDPR. We haven't confirmed any of these for Originality.ai.
- Both have a public API.
From each tool's own website, checked on the dates below, and from published reviews.
Which to choose
From the facts checked for both tools, not from opinion. A fact we haven't confirmed for one of them is never counted.
Choose Originality.ai if you need
- Firefox or Moodle. We haven't found them on GPTZero's website.
- Integration with Moodle, ChatGPT or Claude. We haven't found them on GPTZero's website.
GPTZero
Nobody has reviewed GPTZero yet. Its rating shows once it has 3 reviews.
Review GPTZero
Originality.ai
Nobody has reviewed Originality.ai yet. Its rating shows once it has 3 reviews.
Review Originality.aiThe facts
- What it does
- GPTZeroAn AI detector that detects AI content and checks writing quality.
- Originality.aiAn AI detector that identifies whether text was generated by platforms like ChatGPT, Gemini and Claude.
- Free plan
- GPTZeroYes
- Originality.aiYes
- Pricing
- GPTZeroNot confirmed
- Originality.aiNot confirmed
- Paid plans from
What they share
From the platforms and integrations each website lists.
Platforms
Both
- Chrome
Only GPTZero
- Google Docs
Only Originality.ai
- Firefox
- Moodle
Integrations
Both
- Google Classroom
- Google Docs
Only GPTZero
People who switched
Reviewers who say they used one of these before the other.
No reviewer has said they moved between GPTZero and Originality.ai yet.
Used either of them?
Your review makes this comparison better for the next person. Review GPTZero or review Originality.ai.