🔍
Verified Freemium Trending

GPTZero

AI content detector

Quick Summary

GPTZero is the leading AI content detector trusted by educators and publishers. Identifies AI-generated text with perplexity and burstiness analysis. Free tier available, Premium from $10/month.

Vetted Score 2026 Rating
82
Very Good
⭐ 4.4/5 (35,000 reviews)
Utility
85
Ease of Use
90
Value
85
Privacy
80
Quick Specs
Price
$0-16
API
✓ Yes
Free Trial
10K words/mo free
Updated
January 2026

Who Is GPTZero Best For?

Best for Educators

Check student submissions for AI-generated content to maintain academic integrity.

Best for Publishers

Verify content authenticity before publication.

Best for Content Verification

Identify AI-written articles, essays, and marketing copy.

Best for Writing Analysis

Get detailed reports on text characteristics and AI probability.

Key Benefits of GPTZero

High detection accuracy
Detailed analysis reports
Batch scanning available
Plagiarism checking
API for integration
Trusted by educators

GPTZero Features

AI detection
Plagiarism check
Writing reports
API

Expert Analysis

VettedAI Research Team January 2026
Pros
Industry-leading accuracy
Detailed explanations
Good free tier
Fast results
Regular model updates
Cons
False positives occur
Can miss paraphrased AI text
Not 100% reliable
Limited with short texts
Accuracy varies by writing style
Our Verdict

GPTZero is the best AI detector available, but no detector is perfect. Use it as one tool among many for content verification.

Frequently Asked Questions

How accurate is GPTZero?
GPTZero claims high accuracy but no AI detector is 100% reliable. False positives and negatives do occur, especially with edited or paraphrased text.
Can GPTZero be fooled?
Yes, AI text that has been heavily edited or paraphrased can evade detection. AI detectors are not foolproof.
Is GPTZero free?
GPTZero offers 10,000 free words per month. Paid plans start at $10/month for more capacity and features.