Powered by GPTZero Model 4.4b, the same detector used by universities and publishers. Check any text for AI probability in seconds.
GPTZero 4.4b · Sentence breakdown · Typical scans under 2 seconds
AI scan
Three steps. Seconds.
Works on essays, articles, emails, and any written content.
GPTZero's model measures perplexity and burstiness, the two signals that fingerprint AI text.
Sentence-level breakdown shows exactly which parts triggered the AI score.
See how CloakWrite stacks up for serious checking workflows.
| Feature | CloakWrite Detector | GPTZero (direct) | Turnitin | ZeroGPT |
|---|---|---|---|---|
| Model accuracy | 4.4b (GPTZero) | 4.4b | Institutional | Heuristic blend |
| Cost per check | Included in balance | Subscription / credits | Institution license | Freemium |
| Words per check | Up to plan max | Plan limits | Course policy | Varies |
| Sentence-level breakdown | ✓ | ✓ (paid tiers) | Limited | ✓ |
| Built into humanizer | ✓ | ✗ | ✗ | ✗ |
“We run every client draft through CloakWrite first. The sentence heatmap catches the exact paragraphs editors need to fix.”
Priya N., Editorial Lead ⭐⭐⭐⭐⭐
“Same GPTZero scores we saw in the standalone app, but inside our humanize workflow. Huge time saver for compliance reviews.”
Daniel R., Compliance Analyst ⭐⭐⭐⭐⭐
“Students get instant feedback before submission. The 4.4b model matches what our institution expects from Turnitin-style checks.”
Elena M., Writing Center Director ⭐⭐⭐⭐⭐