Independent · sourced · Updated June 2026
Best AI Detectors (2026)
The cheapest ai detectors is Copyleaks at $0/mo. 6 offer a free tier (Copyleaks, GPTZero, Sapling). This page compares 8 options on entry price, free tier, HIPAA/SOC 2 and best-for — every figure linked to its source, updated June 2026.
8 options compared on price, free tier, compliance and fit — ranked cheapest-first. Every figure links to the vendor's own page and the date we captured it; quote-only tiers show “—”, never a guess.
Key takeaways
- Cheapest: Copyleaks at $0/mo (Free).
- Typical paid price: from $9.99/mo, median $15.99/mo, up to $25/mo — across 6 with published pricing.
- Free tier: Copyleaks, GPTZero, Sapling, Scribbr, Winston AI, ZeroGPT.
- HIPAA-ready: Sapling.
- Tracked: 8 vendors, data current through 2026-06-15.
Comparison
| # | AI Detector | Entry price | Free | HIPAA | SOC 2 | Best for | Source |
|---|---|---|---|---|---|---|---|
| 1 | Copyleaks | $0/mo Free | Yes | — | — | students | capterra.com |
| 2 | GPTZero | $0/mo Free | Yes | — | Yes | educators | gptzero.me |
| 3 | Sapling | $0/mo Free | Yes | Yes | Yes | customer support teams | sapling.ai |
| 4 | Scribbr | $0/mo Free | Yes | — | — | students | scribbr.com |
| 5 | Winston AI | $0/mo Free | No | — | — | content marketers | gowinston.ai |
| 6 | ZeroGPT | $0/mo Free | Yes | — | — | casual users | zerogpt.com |
| 7 | Originality.ai | $14.95/mo Pro | No | — | — | content agencies | originality.ai |
| 8 | Turnitin | — | No | — | — | universities | quote-only |
Prices are the lowest published self-serve monthly rate as captured on the linked source. Annual-billing and usage details are on each vendor's record in our open dataset.
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Frequently asked questions
What is the cheapest ai detectors?
Copyleaks has the lowest published entry price at $0/mo (Free), as of 2026-06-15.
How much does ai detectors cost per month?
Across the 6 ai detectors with published paid pricing, the median starting price is $15.99/mo, ranging from $9.99/mo to $25/mo, as of 2026-06-15. 6 also offer a free tier. 1 are quote-only.
Which ai detectors have a free plan?
Copyleaks, GPTZero, Sapling, Scribbr, Winston AI, ZeroGPT offer a free tier.
Which ai detectors support HIPAA?
Sapling state HIPAA support (a BAA). Always confirm current scope with the vendor.
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How we compiled this
Official pricing pages fetched directly and verified for Originality.ai (originality.ai/pricing — all prices confirmed exact), Winston AI (gowinston.ai/pricing — all prices confirmed exact), Sapling (sapling.ai/pricing + sapling.ai/security — prices and HIPAA/SOC2/GDPR confirmed), and GPTZero compliance (gptzero.me/privacy-and-security — SOC2 Type II + GDPR confirmed). GPTZero, ZeroGPT, and Copyleaks pricing pages are dynamically rendered or returned HTTP 403; for these, only figures corroborated by two or more independent 2026 review sources (spotsaas, aidetectplus, fritz.ai, Capterra, tryleap.ai) were retained. KEY CORRECTION: ZeroGPT's plan ladder was updated from a stale Capterra listing (Pro $8.29 / 'Zero Compromise' $9.99) to the current 2026 structure (Pro $9.99 / Plus $19.99 / Max $26.99) corroborated across multiple recent reviews; the 'Zero Compromise' tier no longer exists. Scribbr and Turnitin confirmed free-only and quote-only respectively via multiple 2026 sources; Turnitin monthlyUsd kept null (no published self-serve price). accessedAt 2026-06-15.
Last verified 2026-06-15. We re-check published prices and compliance on a recurring cadence and update this page when they change.
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