AI answer engine with real-time web search and cited sources.
Originality.ai vs StealthGPT
Features, pricing, strengths and trade-offs — and which one fits your situation.
The verdict
Summary
Originality.ai is best for publishers and content teams checking text for AI generation and plagiarism, while StealthGPT is best for rewriting AI-generated drafts so they read less like machine text. Originality.ai has a free plan, while StealthGPT has no free plan.
Which should you choose?
Choose Originality.ai if…
- You need publishers and content teams checking text for AI generation and plagiarism
- You're one of: content publishers and editors, seo and content agencies, website owners hiring freelance writers
- You want a free plan (StealthGPT doesn't have one)
- Combines AI detection, plagiarism and fact checking in one tool
Choose StealthGPT if…
- You need rewriting AI-generated drafts so they read less like machine text
- You're one of: content writers editing ai-assisted drafts where ai use is permitted, marketers adjusting tone of ai copy
- Simple paste-and-rewrite workflow
At a glance
| Originality.ai | StealthGPT | |
|---|---|---|
| Best for | Publishers and content teams checking text for AI generation and plagiarism | Rewriting AI-generated drafts so they read less like machine text |
| Free plan | Yes | Check site |
| Starting price | From $12.95/mo | From $14.99/mo |
| Learning curve | Low | Low |
| Platforms | Web, Chrome extension, API | Web, Chrome extension |
| Ideal for | Content publishers and editors, SEO and content agencies, Website owners hiring freelance writers | Content writers editing AI-assisted drafts where AI use is permitted, Marketers adjusting tone of AI copy |
Feature comparison
| Originality.ai | StealthGPT | |
|---|---|---|
| Answers with citations | Limited | Limited |
| Searches academic papers | No | No |
| Upload & chat with PDFs | No | — |
| AI content detection | Yes | Yes |
| Rewrites / humanizes text | Yes | Yes |
| Citation formatting | Limited | — |
| Browser extension | Yes | Yes |
| Writing editor | No | Limited |
IncludedLimited / higher plansNot available— Not confirmed
Security & enterprise
| Originality.ai | StealthGPT | |
|---|---|---|
| Business / enterprise plan | Yes | No |
| SSO (SAML / OIDC) | — | — |
| SCIM user provisioning | — | — |
| SOC 2 | — | — |
| ISO 27001 | — | — |
| HIPAA (BAA available) | — | — |
| GDPR DPA | — | — |
| Data residency options | — | — |
| No training on your data | — | — |
| Audit logs | — | — |
| Admin controls | Yes | — |
| Deployment | Cloud | — |
From each vendor's security documentation. "—" = not confirmed. What to ask vendors · Compare all tools
What each tool does
Originality.ai
Originality.ai is a content-checking tool that combines an AI detector, plagiarism checker, fact checker and readability scoring. It is used by publishers, SEO agencies and editors to review submitted content, with a Chrome extension that can replay how a Google Doc was written. An API supports bulk and automated scanning.
Key features- AI content detector with several detection models
- Plagiarism checker
- Fact checker that returns supporting sources
- Chrome extension with Google Docs writing replay
- Readability and grammar scoring
- API and bulk website scanning
StealthGPT
StealthGPT is an AI writing tool that combines a text generator with a 'humanizer' that rewrites AI text to lower AI-detector scores, plus a free AI detector. It is marketed mainly to students and content writers. Using it to submit AI-written work as your own can breach academic integrity and client policies.
Key features- AI humanizer that rewrites existing AI text
- Stealth Writer for generating essays and articles
- Built-in AI detector
- Adjustable rewrite tone and strength
- Chrome extension for rewriting in place (higher tiers)
Pricing
Originality.ai
Free basic tier (3 scans/day); paid from $12.95/mo annual ($14.95 monthly) Pro
StealthGPT
Paid from ~$14.99/mo; ~30% off annual
Prices last checked September 2026. Plans change often — confirm on each vendor's site.
Pros and cons
Originality.ai
Strengths- Combines AI detection, plagiarism and fact checking in one tool
- Writing replay gives evidence beyond a single detection score
- Team management and scan history for editorial workflows
- API suits agencies scanning content at volume
- Like all AI detectors, it produces false positives, so results should not be the sole basis for accusations
- Credit-based scanning adds up for high volumes
- Aimed at publishers rather than students; no research or paper-search features
- Free tier is limited to a few scans per day
Not ideal for: Students looking for research help or anyone wanting a single detection score as definitive proof of misconduct should look elsewhere.
StealthGPT
Strengths- Simple paste-and-rewrite workflow
- AI detector can be used without signing up
- Combines generation and rewriting in one tool
- Tone controls help match a target style
- No permanent free plan for the humanizer
- Independent tests show mixed results against current detectors
- Rewrites can introduce awkward phrasing or change meaning
- Using it to disguise AI work can violate school and employer policies, with serious consequences
Not ideal for: Students whose institutions prohibit undisclosed AI use should not use it for graded work; a research or citation tool is a better fit for legitimate study.
Integrations
Originality.ai
StealthGPT
FAQ
What is the main difference between Originality.ai and StealthGPT?
Originality.ai is built for publishers and content teams checking text for AI generation and plagiarism; StealthGPT is built for rewriting AI-generated drafts so they read less like machine text.
Is Originality.ai or StealthGPT cheaper?
Originality.ai starts from $12.95/mo and StealthGPT starts from $14.99/mo (as of September 2026). On entry price, Originality.ai is cheaper — but compare what each plan includes, since limits differ. Always confirm current pricing on each vendor's site.
Do Originality.ai and StealthGPT have free plans?
Originality.ai has a free plan, while StealthGPT has no free plan.
Which is easier to use, Originality.ai or StealthGPT?
Both have a low learning curve.
What are good alternatives to Originality.ai and StealthGPT?
Other research & study tools worth comparing include Perplexity, Consensus and Monica.
