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GPT-MINUS1 vs GPTZero
A factual side-by-side comparison of GPT-MINUS1 and GPTZero. We compare pricing, categories, free tiers and official websites — no invented scores.
Updated 2026-10-22
Quick take
Both GPT-MINUS1 and GPTZero are Freemium. Pick the one whose tagline and categories match your use case, then check the alternatives below.
| Pricing | Freemium | Freemium |
|---|---|---|
| Categories | AI Detection / Writing / Marketing | AI Detection / Education |
| Best for | GPT-MINUS1 — AI Detection powered by AI | The classroom standard for AI text detection |
| Free tier | Yes — free or freemium | Yes — free or freemium |
| Website | gptminus1.com | gptzero.me |