🧠 Introduction
Crossplag is a web-based platform that offers AI content detection and plagiarism checking tools for educators, writers, and businesses. The company advertises its AI detector as an accurate way to distinguish between human and AI-written content.
In this review, we tested the Crossplag AI Detector to evaluate its accuracy, usability, and overall reliability.
💡 Product Overview
Crossplag’s AI Content Detector claims to analyze text using machine learning and linguistic metrics to estimate whether it’s written by AI or a human. It gives a percentage score (0–100%) representing how “AI-like” the text is.
The platform also features plagiarism checking and multi-language support, but our focus here is strictly on its AI detection.
💻 User Experience
The user interface feels outdated, and several parts of the site are difficult to navigate.
- The dashboard is cluttered and confusing, which makes it hard to figure out where to start.
- Buttons like "Add Credits" do not work, and clicking them does not trigger any visible actions.
Once you reach the AI detector, the design of that specific page is more polished and straightforward. You paste your text, press Check, and get a result. Still, the overall site feels neglected, and it does not seem to have received meaningful updates in a long time.
🧪 Accuracy Testing
We ran several tests using human-written, AI-generated, mixed, and TwainGPT-humanized text.
| Text Type | Crossplag Result |
|---|---|
| Human Text (Sample 1) | 0% AI |
| Human Text (Sample 2) | 100% AI |
| AI Text (Sample 1) | 66% AI |
| AI Text (Sample 2) | 0% AI |
| Mixed Text (50/50) | 30% AI |
| TwainGPT Humanized | 0% AI |
The results were highly inconsistent.
One human sample was correctly labeled as 0% AI, while another completely human sample was flagged as 100% AI, which is a major false positive.
Overall, Crossplag’s detector is unreliable, producing both false positives and false negatives, and struggling to give consistent results across different types of text.
💰 Pricing
Crossplag appears to be free for most use cases.
Even after extensive testing, we did not run into any usage limits, credit caps, or paywalls. The platform seems to allow full access without requiring an upgrade.
📊 Scorecard
| Feature | Score | Notes |
|---|---|---|
| AI Detector | ⭐☆☆☆☆ (1/5) | Inconsistent results and false positives. |
| UI & UX | ⭐⭐☆☆☆ (2/5) | Outdated and buggy interface. |
| Transparency | ⭐⭐☆☆☆ (2/5) | Lacks updates or clear documentation. |
| Value | ⭐⭐⭐☆☆ (3/5) | Free access, but poor reliability. |
Overall Rating: ⭐⭐☆☆☆ (2/5)
✅ Final Verdict
We do not recommend Crossplag’s AI Detector.
- ⚠️ Outdated and buggy UI
- ⚠️ False positives on human text
- ⚠️ Inconsistent and unreliable AI detection
- ✅ TwainGPT humanized text stays undetectable
If you need to bypass Crossplag and other AI detectors, use TwainGPT.