AI Detectors · pricing · Updated September 2026
GPTZero pricing (2026)
GPTZero's paid plans start at $14.99/mo (Essential) as checked on 2026-09-27, read from GPTZero's own pricing page; 5 plans. Best for educators. Every figure below links to its source and the date we captured it.
At a glance
- Entry price: $14.99/mo (Essential) · 44% off with annual billing
- Free tier: Yes
- Compliance: HIPAA — · SOC 2 Yes · GDPR Yes
- Best for: educators; academic institutions; content teams; enterprise compliance
As of · every figure below links to its source STALE · 2026-09-02
GPTZero plans & pricing
| Plan | Monthly | Annual | Billing | Notes | Source |
|---|---|---|---|---|---|
| Free STALE · 2026-09-02 | $0 | — | Flat monthly | 10,000 words/month, ~5,000 characters per scan (per-scan limit reported as 5,000–10,000 chars across sources), limited scans/hour. No batch upload or API. Document-level score only (no sentence-level breakdown). No credit card required. | gptzero.me |
| Essential STALE · 2026-09-02 | $14.99 | −44% | Flat monthly | 150,000 words/month. Annual billing ~$8.33/month (~45% savings). Full sentence highlighting, Chrome extension, plagiarism check, multilingual detection, writing feedback, batch upload (10 files). Price corroborated by 3 independent 2026 sources. | gptzero.me |
| Premium | $23.99 | −46% | Flat monthly | 300,000 words/month. Annual billing ~$12.99/month. Unlimited batch uploads. All Essential features plus advanced scan, citation generation. Most popular plan. Price corroborated. | gptzero.me |
| Professional | $45.99 | −46% | Flat monthly | 500,000 words/month. Annual billing ~$24.99/month. API access included. Up to 250-file batch uploads. Team collaboration, custom LMS integration. Credits do not roll over. Price corroborated. | gptzero.me |
| Enterprise / Classroom | not priced monthly | — | Custom / quote | Custom pricing for institutions and teams. Shared team credits, unified billing, LMS integration (Canvas, Google Classroom). Contact sales. | gptzero.me |
Last verified 2026-09-27. STALE marks a plan we have not re-checked at its source in over 30 days. 2 of 5 plans above are marked. gptzero.me/pricing is dynamically rendered; plan names and prices ($14.99/$23.99/$45.99) corroborated by spotsaas.com, fritz.ai, and aidetectplus.com 2026 reviews. SOC 2 Type II and GDPR confirmed directly on gptzero.me/privacy-and-security (also lists CCPA, FERPA, HECVAT, VPAT). Free tier 10,000 words/month confirmed.
Price changes
Price on record
$14.99/moFirst on record 2026-06-27
A new dated entry is stamped here each time the price moves — the record builds itself.
Tracked since June 2026. No change record has cleared two sources yet, so nothing is published on the wire.
Capabilities
Integrations: Chrome Extension, Google Docs, Google Classroom, Canvas, Zapier, API.
Key features: SOC 2 Type II + GDPR (also CCPA, FERPA, HECVAT, VPAT); Sentence-level AI highlighting (paid); API bundled in Professional tier; LMS integrations (Canvas, Google Classroom).
Plan limits: Free: 10,000 words/month, ~5,000 chars/scan; Essential: 150,000 words/month; Premium: 300,000 words/month; Professional: 500,000 words/month; Credits do not roll over.
Frequently asked questions
How much does GPTZero cost?
GPTZero's paid plans start at $14.99/mo (Essential), and it lists a $0 plan (Free); it has 5 published plans. Verified 2026-09-27.
Is GPTZero cheaper billed annually?
Yes. GPTZero publishes a 46% discount for paying annually (on the Premium plan). Verified 2026-09-27.
What are cheaper alternatives to GPTZero?
Cheaper AI detectors than GPTZero (entry $14.99/mo) include ZeroGPT at $13.99/mo, Originality.ai at $14.95/mo. Verified 2026-09-27.
Does GPTZero support HIPAA?
GPTZero's public pages do not say whether it supports HIPAA. Its public pages also state SOC 2 and GDPR compliance.
Does GPTZero have a free plan?
Yes — GPTZero publishes a free tier.
GPTZero vs alternatives
Compare all AI detectors · GPTZero alternatives · GDPR claims in AI detectors · Open data · MCP
Cheaper AI detectors alternatives
- Originality.ai from $14.95/mo
- ZeroGPT from $13.99/mo
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Related categories
This standing as a plaque
GPTZero currently holds a platinum deskmark here — Rank 1 of 8 · AI Detectors. Anyone may show it. There is nothing to apply for, nothing to pay, and displaying it changes no score: the standing comes from the published algorithm, which never reads commission data. We never ask anyone to show it, and its link carries rel="nofollow".
The image is drawn from our live data, so it follows the standing rather than freezing it: if GPTZero moves up or down a tier, the plaque on your own site says so at our next publish. Nothing is tracked beyond the ordinary web-server log that records any image request.