Prices / AI detectors we track
AI detectors we track
7 detectors, A to Z. Each links to a page with every plan, the free tier, refund terms and the date we last read the vendor's pricing page. For accuracy, start with is GPTZero accurate?
| Tool | From | Free tier | Checked | |
|---|---|---|---|---|
| Copyleaks | $16.99/mo | none stated | Oct 8, 2026 | Pricing → |
| GPTZero | $23.99/mo | "Get started for free" button; free plan limits not shown on the pricing page | Oct 8, 2026 | Pricing → |
| Originality.ai | $14.95/mo | Free: 3 scans a day, up to 2,000 words per scan | Oct 8, 2026 | Pricing → |
| Pangram | $20/mo | "Try It for Free"; plans reference a Free plan whose limits are not shown on the pricing page | Oct 8, 2026 | Pricing → |
| Sapling AI Detector | $25/mo | Free: AI detector checks up to 2,000 characters each; signing up starts a 1-month Pro trial | Oct 8, 2026 | Pricing → |
| Winston AI | $18/mo | Free: 2,000 credits for a 14-day trial | Oct 8, 2026 | Pricing → |
| ZeroGPT | $14.99/mo | Free plan: up to 15,000 characters per AI detection, no batch files | Oct 8, 2026 | Pricing → |