G
GOriginality.ai vs StealthGPT
Pricing, features, platforms and who each one suits — side by side.
O
Choose Originality.ai if…
- you want a free plan to start with
- you want the lower entry price ($12.95/mo vs $29.99/mo)
- you're in its core audience: content publishers, marketing agencies
S
Choose StealthGPT if…
- you want to trial it before paying
- you work on iOS
- you're in its core audience: students, content writers
Side by side
Feature Originality.ai StealthGPT
Pricing modelFreemiumFree trial
Starting price$12.95/mo$29.99/mo
Free plan
Free trial
API
Open source
Cost per 1,000 words processed$0.065—
Trains AI on your contentYes, unless you opt out—
Data retentionScan history kept 30 days (Pro) or 365 days (Enterprise)—
Sentence-level highlights—
Plagiarism checker—
Writing replay—
Bulk processing—
Shareable reports—
Docs/LMS integration—
PlatformsWeb, Chrome, APIWeb, iOS, Chrome, API
CategoryAI DetectorsAI Humanizers
CompanyOriginality AI Inc. · Canada · since 2022XYZ AI, Inc.
Full feature lists
O Originality.ai
- AI text detection with sentence-level highlights
- Plagiarism checker
- Fact and AI hallucination checker
- Grammar and readability checkers
- Bulk Scan for many documents
- Writing Replay showing how a document was written
- Deep Scan editing suggestions
- Shareable reports and PDF downloads
S StealthGPT
- AI Humanizer with Lite and Super rewrite modes
- AI Detector with instant AI-likelihood score
- Stealth Writer essay generator with citations
- Stealth Agent for research, drafting and fact-checking
- Chat with PDF and photo-to-answers
- AI watermark detectors and removers
- REST API with bulk requests of up to 100 items
- WordPress, Zapier, n8n and MCP integrations
Their home pages
What each vendor shows first: the pitch, the plans and the sign-up.
Originality.ai · originality.ai
StealthGPT · stealthgpt.aiWhat you'd pay
The cheapest plan that fits, per month, billed yearly where the plan offers it.
What the free plans include
Originality.ai
- 10K words (100 credits one time)
- 60 credits (3 scans/day)
- 1 credit = 100 words
StealthGPT
No free plan.
All plans and prices
Originality.ai
FreeFree
Pro$14.95/mo, or $12.95/mo billed yearly ($155.40/yr)
Enterprise$179/mo, or $136.58/mo billed yearly ($1,638.96/yr)
StealthGPT
Pro$29.99/mo ($1 for 3-day trial)
Max$49.99/mo ($1 for 3-day trial)
Enterprise$179.99/mo
Strengths and limitations
Originality.ai
- Free tier includes AI, plagiarism, grammar and fact checks
- Pro plan starts at $12.95/mo billed yearly
- Integrations for Chrome, Firefox, Google Docs, Moodle and Google Classroom
- Detects text that was paraphrased with AI
- API access only on the $179/mo Enterprise plan
- Credit-based usage: 1 credit equals 100 words
- Pricing page gives conflicting details on free credits and Pro scan history
StealthGPT
- Pro and Max can be tried for $1 for 3 days
- API, MCP, Zapier and n8n integrations available
- Available on web, iOS and as a Chrome extension
- Interface available in nine languages
- Pro plan limits each request to 1,000 words
- Team seats only on Max and Enterprise
- Trial converts to $29.99/month or more
More comparisons
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Facts from each vendor's public pages, prices checked Oct 26, 2026. Editorial policy