Best AI Detectors · head-to-head
GPTZero vs Winston AI
A sourced, side-by-side comparison for ai detectors. GPTZero has the lower entry price. Every figure links to the vendor's own page and the date we captured it.
At a glance
- Price: GPTZero $0/mo vs Winston AI $0/mo — GPTZero is cheaper to start.
- Free tier: GPTZero Yes; Winston AI No.
- HIPAA: GPTZero —; Winston AI —.
Side by side
| GPTZero | Winston AI | |
|---|---|---|
| Entry price | $0/mo (Free) | $0/mo (Free) |
| Free tier | Yes | No |
| HIPAA (BAA) | — | — |
| SOC 2 | Yes | — |
| GDPR | Yes | Yes |
| Best for | educators | content marketers |
Sources — GPTZero: gptzero.me (verified 2026-06-15). Winston AI: gowinston.ai (verified 2026-06-15).
Key features
GPTZero: SOC 2 Type II + GDPR (also CCPA, FERPA, HECVAT, VPAT); Sentence-level AI highlighting (paid); API bundled in Professional tier; LMS integrations (Canvas, Google Classroom)
Winston AI: Claims high AI detection accuracy; AI image detection included; HUMN-1 website certification (Advanced+); Paraphrasing / humanized AI detection