AI Detectors · true cost · Updated June 2026
The true cost of AI detectors
What you'll actually pay. Of the 8 AI detectors tools we track, 2 publish no self-serve price (quote-only), 1 add a setup fee. Here's every tool's entry price and its hidden-cost flags — each linked to its sourced record.
The hidden-cost picture
- No public price: 2 of 8 are quote-only (contact sales).
- Setup fee: 1 charge an upfront setup fee.
- Cheapest published: ZeroGPT from $9.99/mo.
- No overage or setup fee: ZeroGPT, GPTZero, Copyleaks, Winston AI, ….
As of · re-verified with each catalog refresh
AI Detectors — entry price & hidden-cost flags
| Tool | Entry price | Usage overages | Setup fee |
|---|---|---|---|
| ZeroGPT | $9.99/mo | — | — |
| Originality.ai | $14.95/mo | — | $30 |
| GPTZero | $14.99/mo | — | — |
| Copyleaks | $16.99/mo | — | — |
| Winston AI | $18/mo | — | — |
| Sapling | $25/mo | — | — |
| Scribbr | Quote-only | — | — |
| Turnitin | Quote-only | — | — |
Prices and fee terms re-verified with each catalog refresh. Last catalog update 2026-06-15. "Quote-only" means the vendor publishes no self-serve price.
Frequently asked questions
Does AI detectors have hidden fees?
Across the 8 AI detectors tools we track: 2 publish no self-serve price (quote-only), 1 add a setup fee. As of 2026-06-15.
What is the cheapest AI detector with published pricing?
ZeroGPT, from $9.99/mo. Verified 2026-06-15.
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