GPTZero
AI Detector
VS
Originality.ai
The most accurate AI detector for ChatGPT, Gemini, Claude, and Grok.
Popularity
GPTZero9,237
Originality....8,838
Pricing
FreemiumGPTZero
FreemiumOriginalit...
Features
4
GPTZero
vs
4
Originalit...
Our verdict
GPTZero is more geared toward b2c users, while Originality.ai targets b2b.
GPTZero offers an API for integration into your workflows.
Detailed comparison
Criteria
GPTZero
Originality.ai
Pricing
Freemium
Freemium
Plans & pricing
Free: Free
Pay As You Go: $12.95/mo, On-Demand Pricing: $30/mo, All-in-one Plan: $12.95/mo
Free trial
No
No
Audience
b2c
b2b
Platforms
Web, Api, Cloud-computing
Web
API
Yes
No
Open Source
Proprietary
Proprietary
Integrations
Zapier, Google-docs, Google-classroom, Canvas, Google-slides, Google-forms, Google-sheets, Google-drive, Gmail, Typeform, Greenhouse, Zengine, Microsoft-word, Relevance-ai, Schmidt-futures, Kritik, Source-scout, Peerceptiv, Brisk-teaching, Revisely
—
Categories
Writing
Writing, SEO
Popularity
Very High
Very High
Description
GPTZero is a free AI detector that scans text for potential AI-generated content. It offers an overall AI score and advanced sentence-by-sentence detection for models like ChatGPT, GPT-5, and Gemini. Simply paste your text to get instant results.
Originality.ai offers a highly accurate AI detector to identify content generated by popular AI models like ChatGPT, Gemini, Claude, and Grok. It also provides advanced plagiarism detection and readability scoring. The tool helps users prove their writing is original and rank better in Google search.
Pricing
GPTZero
Freemium
Originality.ai
Freemium
Plans & pricing
GPTZero
Free: Free
Originality.ai
Pay As You Go: $12.95/mo, On-Demand Pricing: $30/mo, All-in-one Plan: $12.95/mo
Free trial
GPTZero
No
Originality.ai
No
Audience
GPTZero
b2c
Originality.ai
b2b
Platforms
GPTZero
Web, Api, Cloud-computing
Originality.ai
Web
API
GPTZero
Yes
Originality.ai
No
Open Source
GPTZero
Proprietary
Originality.ai
Proprietary
Integrations
GPTZero
Zapier, Google-docs, Google-classroom, Canvas, Google-slides, Google-forms, Google-sheets, Google-drive, Gmail, Typeform, Greenhouse, Zengine, Microsoft-word, Relevance-ai, Schmidt-futures, Kritik, Source-scout, Peerceptiv, Brisk-teaching, Revisely
Originality.ai
—
Categories
GPTZero
Writing
Originality.ai
Writing, SEO
Popularity
GPTZero
Very High
Originality.ai
Very High
Description
GPTZero
GPTZero is a free AI detector that scans text for potential AI-generated content. It offers an overall AI score and advanced sentence-by-sentence detection for models like ChatGPT, GPT-5, and Gemini. Simply paste your text to get instant results.
Originality.ai
Originality.ai offers a highly accurate AI detector to identify content generated by popular AI models like ChatGPT, Gemini, Claude, and Grok. It also provides advanced plagiarism detection and readability scoring. The tool helps users prove their writing is original and rank better in Google search.
Features
GPTZero
Free AI checker for ChatGPT, GPT-5 & Gemini
Overall AI score
Sentence-by-sentence detection
Scan potential AI text in any document
Originality.ai
Free AI Detector for ChatGPT, Gemini, Claude, Grok
Advanced Plagiarism Detection
Readability Scoring
SEO Optimization Features
Key differentiators
GPTZero
- High accuracy AI detection
- Sentence-by-sentence analysis
- Educational focus & LMS integration
- Comprehensive writing toolkit
Originality.ai
- Highly accurate AI & plagiarism detection
- Real-time fact-checking with context
- Modern readability scoring for SEO
Other comparisons
FAQ: GPTZero vs Originality.ai
GPTZero: AI Detector. Originality.ai: The most accurate AI detector for ChatGPT, Gemini, Claude, and Grok.. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. GPTZero is freemium and Originality.ai is freemium.
The best choice between GPTZero and Originality.ai depends on your specific needs. Compare their features, pricing, and target audience on this page to find the tool that best fits your use case.
GPTZero is primarily designed for individuals, while Originality.ai is built for individuals.
GPTZero offers: Free AI checker for ChatGPT, GPT-5 & Gemini, Overall AI score, Sentence-by-sentence detection, Scan potential AI text in any document. Originality.ai offers: Free AI Detector for ChatGPT, Gemini, Claude, Grok, Advanced Plagiarism Detection, Readability Scoring, SEO Optimization Features.
Based on our data, GPTZero currently enjoys greater popularity. However, popularity isn't the only factor — compare features to find the right tool for your needs.
Neither tool currently offers a free trial.
GPTZero offers 20 integrations (zapier, google-docs, google-classroom, canvas, google-slides...) compared to 0 for Originality.ai.
GPTZero is available on Web, Api, Cloud-computing. Originality.ai is available on Web.
