ZeroGPT vs GPTZero: Quick Answer
ZeroGPT is free but basic. GPTZero is more accurate but paywalled. Neither gives you word-level analysis or rewrite help.
Comparison Table
| Feature | ZeroGPT | GPTZero | AI Detector (Us) |
|---|---|---|---|
| Price | Free | $10/mo (free: 5K chars) | Free |
| Accuracy | ~84% | ~89% | ~86% |
| Word heatmap | ❌ | ❌ | ✅ |
| Rewrites | ❌ | ❌ | ✅ |
| Sign-up | No | Yes | No |
| Analysis depth | Score only | Sentence highlights | Word-level |
ZeroGPT: Good for Quick Checks
- Free, no sign-up
- Fast results
- But: lower accuracy, no detail on why text was flagged, occasional wildly wrong results
GPTZero: Better Accuracy, Worse Value
- More accurate than ZeroGPT
- But: paywall after 5K characters, no word-level detail, no rewrite help
Best of Both Worlds
Our detector combines ZeroGPT’s accessibility (free, no sign-up) with accuracy comparable to GPTZero — and adds what neither offers: word-level heatmaps and rewrite suggestions.
Try the free detector → AI Detector