Best SlopProx Alternatives in 2026
Updated
20 platforms from AI detection software ranked against SlopProx on the same published basis.
- 1SlopProx vs GPTZero
- 2SlopProx vs Sapling
- 3SlopProx vs Polygraf AI Detector
- 4SlopProx vs Pangram
- 5SlopProx vs UncovAI AI Detector Extension
- 6SlopProx vs Winston AI
- 7SlopProx vs Grammarly
- 8SlopProx vs TraceGPT
- 9SlopProx vs Trinka
- 10SlopProx vs ZeroTrue
- 11SlopProx vs Copyleaks AI Detector
- 12SlopProx vs Heynotai
- 13SlopProx vs IA Checker
- 14SlopProx vs ScribeLens
- 15SlopProx vs Originality.ai
- 16SlopProx vs Undetectable AI
- 17SlopProx vs AI Detector Pro
- 18SlopProx vs EyeSift
- 19SlopProx vs Smodin AI Detector
- 20SlopProx vs Is It AI?
SlopProx alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | GPTZero | 7.7 | Free plan | $8.33/mo | API, Browser, Web |
| 2 | Sapling | 7.7 | Free plan | $5/mo | API, Browser, self-hosted, Web, Windows |
| 3 | Polygraf AI Detector | 7.6 | Free plan | $9.95/mo | API, Browser, Web |
| 4 | Pangram | 7.5 | Free plan | $1.67/mo | API, Browser, Web |
| 5 | UncovAI AI Detector Extension | 7.5 | Free plan | €9.99/mo | Browser, Web |
| 6 | Winston AI | 7.5 | Free plan | $5/mo | API, Browser, Web |
| 7 | Grammarly | 7.1 | Free plan | $12/mo | Android, iOS |
| 8 | TraceGPT | 7.1 | No | — | API, Browser, Web |
| 9 | Trinka | 7.1 | Free plan | — | API, Browser, Mac, self-hosted, Web, Windows |
| 10 | ZeroTrue | 7.1 | Free plan | Free | Android, API, iOS, self-hosted, Web |
| 11 | Copyleaks AI Detector | 7.0 | No | $1.17/mo | API, Browser, Web |
| 12 | Heynotai | 7.0 | Free plan | $8/mo | API, Browser, self-hosted, Web |
| 13 | IA Checker | 7.0 | Free plan | €9.90/mo | iOS, Web |
| 14 | ScribeLens | 7.0 | Free plan | $0.04/mo | API, Web |
| 15 | Originality.ai | 6.9 | Free plan | $12.95/mo | API, Browser, Web |
| 16 | Undetectable AI | 6.9 | No | $0.42/mo | API, Browser, Web |
| 17 | AI Detector Pro | 6.5 | Free plan | Free | Web |
| 18 | EyeSift | 6.4 | Free plan | Free | Web |
| 19 | Smodin AI Detector | 5.6 | No | — | Web |
| 20 | Is It AI? | 5.5 | No | — | Web |
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Questions about SlopProx alternatives
What is the best alternative to SlopProx?
GPTZero, number 1 in AI detection software with a score of 7.7 out of 10. The others here: Sapling, Polygraf AI Detector, Pangram and 16 more.
What is the best free alternative to SlopProx?
GPTZero is the best-ranked alternative with a free plan. 15 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.