ZeroGPT
Free AI detector with sentence-level analysis plus a wider writing toolkit.
4.1(51 reviews)MatchFast editorial rating, not a verified user review average.
- Price
- Free + paid (price not published)
- Founded
- Not available
- HQ
- Not available
- Employees
- Not available
About ZeroGPT
ZeroGPT reports results at document, paragraph and sentence level, which makes it more useful than a single percentage. It claims 98.4% detection accuracy, a false positive rate under 1% and coverage of 35 or more model families. Around the detector sit paraphrasing, summarising, grammar checking, translation and plagiarism tools. The free checker handles up to 15,000 characters. API plans are sold pay-as-you-go for developers, and Business, EDU and Enterprise tiers exist, though none of their prices are shown.
Key platforms
Core service areas
AI detection
Document, paragraph and sentence level
Plagiarism checker
Source matching
Paraphraser
Rewrites passages
Summariser
Condenses long text
Grammar checker
Writing corrections
API
Pay-as-you-go business plans
Pros and cons
Pros
- Sentence-level breakdown rather than one overall score
- Free checks up to 15,000 characters
- Bundles paraphrasing, summarising and translation
- API plans available for developers
Cons
- Plan prices are not published on the pricing page
- Reviewers report false positives on human writing
Frequently asked questions
- Is ZeroGPT free?
- Yes, with a free tier allowing checks up to 15,000 characters. Q: How accurate does ZeroGPT claim to be? A: 98.4% detection accuracy with a false positive rate under 1%, across 35+ model families. Q: What are good alternatives to ZeroGPT? A: GPTZero, Originality.ai and Copyleaks.
Best for
Students and casual users who need a quick free check before submitting work.
Pricing details
Free tier with no card required, checking up to 15,000 characters. Personal plans on monthly or annual billing with a stated 35% annual saving. Business, EDU, Enterprise and pay-as-you-go API plans are offered. Exact prices were not displayed at time of review. Details: https://www.zerogpt.com/pricing
Review notes
- Last reviewed
October 4, 2026
- Source
zerogpt.com | https
Featured on MatchFast
Promote this listing
Paste this on your site to show the MatchFast badge. It links back to this listing, and the link is followed.
<a href="https://matchfast.co/tool/zerogpt/"><img src="https://matchfast.co/badge/zerogpt.svg" alt="ZeroGPT on MatchFast"></a>Client reviews
Client Reviews
No verified client reviews yet. Worked with ZeroGPT? Share your experience. Reviews are email-verified and moderated before publishing.
Similar tools
Same directory, ranked by editorial rating.
AI and plagiarism detection built for publishers, with team seats and site scans.
Winston AI
4.4
AI and deepfake detection with OCR, PDF reports and website certification.
GPTZero
4.3
AI detector used by over a million educators, now part of Superhuman.
Shortlisting for a build like this?
Tell us the scope and the budget band, and we come back with providers that match.