Free AI Detector & Plagiarism Checker | Originality.AI

Description

Originality.AI is ai detector tool that delivers military-grade accuracy in spotting both copied and AI-written text. Built for content teams, professors, agencies, and SEO pros who refuse to risk reputation or penalties, it combines the world’s largest plagiarism database with bleeding-edge AI detection that catches ChatGPT, Claude, Gemini, Grok, and every new model on day one.

Features

• Lightning-fast plagiarism scan across 90+ billion archived pages
• 99.7% accurate AI-content flagger with sentence-level highlights
• Team dashboards, shared reports, and unlimited user seats
• Full REST API + Zapier + Google Docs add-on
• Readability score + fact-check layer (new in 2025)

Use Cases

• Universities stopping AI cheating before it hits Turnitin
• Agencies guaranteeing 100% human content to clients
• Publishers protecting copyright revenue
• HR teams screening AI-generated résumés
• E-commerce brands keeping product descriptions unique on Google

How It Works

Paste any text or upload a file → Originality.AI runs parallel plagiarism + AI scans → 8 seconds later you get a color-coded report showing exact sources, AI probability per paragraph, and one-click rewrite suggestions.

Pricing

Model: Pay-per-word (cheapest in class)
$0.01 per 100 words scanned — no subscriptions, no minimums.
Every new account gets 300 free credits instantly.

Pros

• Highest documented accuracy in third-party tests (99.7%)
• Zero false positives on human writing (money-back guarantee)
• Reports export to PDF with legal timestamps
• 24/7 human support + weekly model updates
• Built by content creators, for content creators

Cons

• Requires internet connection (no offline mode yet)
• Very large scans (500k+ words) need batch upload
• So accurate that lazy writers hate it

Preview

FAQ

What exactly does it detect?
Every public AI model + 90B+ web pages.

How do I start?
Sign up → 300 free credits → paste text → done.

Can I white-label reports?
Yes — agency plans include full branding removal.

Is it really free to try?
Yes — 300 credits = ~30,000 words free forever.

Where’s the catch?
There isn’t one. You only pay when you scan more.

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