Originality.ai vs Semji
Originality.ai
originality.ai
Semji
semji.comSide by side
| Figure | Originality.ai | Semji |
|---|---|---|
| Price from | $12.95/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 7 | 1 |
| Spec score · Content Optimization Software | 8.9 (#5) | 7.4 (#53) |
| Founded | 2022 | 2012 |
| Headquarters | Collingwood, Ontario, Canada | Lyon, France |
| Integrations | Originality.ai offers a Moodle integration for reviewing submitted work for AI-generated text and plagiarism within Moodle. | Semji lists Google Analytics 4, Search Console, Matomo, Slack and Microsoft Teams as data sources, and MCP and webhooks among its publishing connections. |
| Product | Originality.ai offers tools for AI detection, plagiarism detection, fact checking, readability, grammar and spelling, and content quality checks. | Semji describes itself as a platform that measures brand visibility in AI assistants and Google search, then helps create and publish content to improve it. |
| Security | The help center states uploaded scanner content is end-to-end encrypted and inaccessible to staff or other users unless shared. | Semji states that it is SOC 2 Type II audited and GDPR-compliant, and hosts customer data on AWS in the EU. |
Plans
Originality.ai
- BasicFree
- Pro$12.95 a month
- Pro (annual billing)$12.95 a month
- Pro (monthly billing)$14.95 a month
- Enterprise$136.58 a month
- Enterprise (annual billing)$136.58 a month
- Enterprise (monthly billing)$179 a month
In their own words
Originality.ai
Originality.ai provides tools for checking AI-generated text, plagiarism, facts, readability, grammar, spelling and content quality. Its free Basic plan costs $0.00 per free and provides three AI scans per day, with up to 2,000 words per scan. The AI detector offers configurable allowances of 0%, 5%, 15%, 25% or 40%. A website scanner can crawl a site, identify pages likely to contain AI-generated content and run scheduled scans. The browser extension scans Google Docs, web pages or selected text, and includes writing replay, typing behavior insights and shareable reports. A REST-based API submits text for AI and plagiarism scans and returns detailed results; the maker says AI detection supports 30 languages. API AI scans require at least 50 words, and the help page says accuracy decreases below 100 words. Originality.ai describes detection results as probabilistic estimates that may produce false positives or false negatives, not conclusive proof. Pro costs $12.95 per month billed yearly, with a monthly option at $14.95 per month. The service is available through web, API and extension.