Best AI Detectors · alternatives
Best GPTZero alternatives (2026)
7 alternatives to GPTZero in ai detectors, ranked by entry price. GPTZero starts at $0/mo. Every figure links to the public page it was captured from — the vendor's own wherever the vendor publishes the number, otherwise the named public source — with the date we captured it.
Key takeaways
- Free alternatives: Copyleaks, Originality.ai, Sapling, Scribbr, Winston AI, ZeroGPT.
- Closest by price: Copyleaks ($0/mo), Originality.ai ($0/mo), Sapling ($0/mo).
GPTZero alternatives compared
| # | Alternative | Entry price | Free | HIPAA | Best for | Source |
|---|---|---|---|---|---|---|
| 1 | Copyleaks STALE · 2026-09-02 | $0/mo | Yes | — | students | capterra.com |
| 2 | Originality.ai | $0/mo | Yes | — | content agencies | originality.ai |
| 3 | Sapling | $0/mo | Yes | Yes | customer support teams | sapling.ai |
| 4 | Scribbr | $0/mo | Yes | — | students | scribbr.com |
| 5 | Winston AI | $0/mo | No | — | content marketers | gowinston.ai |
| 6 | ZeroGPT | $0/mo | Yes | — | casual users | zerogpt.com |
| 7 | Turnitin STALE · 2026-09-02 | quote-only | No | — | universities | turnitin.com |
Data current through 2026-09-27. STALE marks a row whose price we have not re-checked at its source in over 30 days; a vendor with no published price is marked when any of its plans is. 2 of 7 rows above are marked. Compare any two directly on the AI Detectors index.