AI Detector

Writing & Content CreationFreeFree trial

Detect if text was generated by ChatGPT, GPT-5, Claude, Gemini, Grok and other popular AI platforms with high accuracy.

Comparee rates AI Detector 59/100 in Writing & Content Creation — based on catalog data as of July 2026. Methodology.

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About AI Detector

Originality.ai's AI Detector is a patented tool designed to identify AI-generated content from leading language models including GPT-5, ChatGPT, Claude, Gemini, and Grok. The platform offers a complete content integrity suite combining AI detection with plagiarism checking, grammar checking, readability analysis, fact checking, and content quality scoring. Independent peer-reviewed studies have shown it to be the most accurate AI detector tested. It serves writers, students, editors, marketers, publishers, and educators who need transparency before publishing or submitting content.

AI detectionplagiarism checkercontent qualitygrammar checkerfact checkerreadabilityoriginality verification

Pros & cons

✓ Pros

✓Most accurate AI detector according to peer-reviewed studies
✓Comprehensive content integrity suite with multiple tools
✓Chrome Extension for real-time document creation replay
✓Detects latest AI models including GPT-5, Claude Opus, Gemini 3.5
✓Free tier available for limited scans
✓Moodle and API integrations available
✓Transparent methodology with published benchmark data

✗ Cons

✗Free scans are limited in word count
✗Recommends human review for high-consequence decisions
✗AI detection should be used as one signal, not final decision

AI Detector pricing

Free trial available

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Frequently asked questions

What is AI Detector?

AI Detector is a Writing & Content Creation tool: Detect if text was generated by ChatGPT, GPT-5, Claude, Gemini, Grok and other popular AI platforms with high accuracy.

Is AI Detector free?

AI Detector offers a free option.

What are the best AI Detector alternatives?

Based on Comparee's ranking, top alternatives include Copymatic, Free AI Product Description Generator, Rytr. See the full ranked list on our AI Detector alternatives page.

How does Comparee rate AI Detector?

AI Detector has a Comparee Score of 59/100 — a transparent, rule-based rating from catalog signals (data completeness, pricing transparency, category fit). Affiliate partnerships never influence the score.