GPTZero
AI DetectorAI-writing detector built by Edward Tian that flags text from ChatGPT, Claude, and Gemini using perplexity and burstiness.
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7 alternatives · AI Plagiarism Checker
Copyleaks Content authenticity platform pairing AI-writing detection with plagiarism checking across 60+ billion pages, built for institutions. Read our review Copyleaks alternatives
AI Detection tools detect AI-generated content. They vary a lot in output quality, pricing and how well they fit an existing workflow.
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Browse the category More AI Detection tools
- Freemium
Why consider: One of the most recognized detectors, widely adopted in education
- Freemium
Hive Moderation
AI Content ModerationContent moderation and AI-detection APIs — flag NSFW, violence, hate, and AI-generated media at platform scale.
Not yet rated DetailsWhy consider: Broad model coverage — visual, audio, and text moderation in one API
- Paid
Originality.ai
AI Content DetectorAI content and plagiarism detector built for content publishers — scans for GPT, Claude, and Gemini text plus plagiarism in one pass.
Not yet rated DetailsWhy consider: AI detection and plagiarism checking combined in a single scan
- Freemium
Sapling AI Detector
AI Content DetectorAI content detector paired with real-time grammar and writing suggestions, plus an API for teams.
Not yet rated DetailsWhy consider: Combines AI-text detection with grammar and autocomplete in one tool
- Paid
Turnitin AI Detection
AI Content DetectorThe academic integrity standard — detects AI-generated writing and plagiarism in student submissions.
Not yet rated DetailsWhy consider: Built into the LMS grading flow instructors already use — zero extra steps
- Freemium
Winston AI
AI DetectorAI content detector built for publishers and educators — 99.98% accuracy detecting ChatGPT and Claude.
Not yet rated DetailsWhy consider: Combines AI-detection and plagiarism checking in one tool
- Freemium
ZeroGPT
AI Content DetectorFree AI content detector that flags ChatGPT, GPT-4, and Gemini text with a percentage score and sentence highlighting.
Not yet rated DetailsWhy consider: Free and usable with no account for quick checks
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Pros, cons, pricing and who it is actually for — from hands-on testing.