Originality.ai vs Winston AI
Originality.ai
originality.ai
Winston AI
gowinston.aiSide by side
| Figure | Originality.ai | Winston AI |
|---|---|---|
| Price from | $12.95/mo | $5/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 7 | 8 |
| Spec score · AI Content Detectors | 8.6 (#5) | 8.5 (#7) |
| Spec score · AI Detection Software | 8.8 (#7) | 8.5 (#12) |
| Spec score · AI Content Detection Software | 8.8 (#11) | 8.5 (#16) |
| Spec score · Plagiarism Detection Software | 8.9 (#7) | 8.5 (#12) |
| API | The public REST API accepts scan requests and returns AI-likelihood and plagiarism results; the help page says it supports 30 languages. | Winston offers developer APIs for AI detection, plagiarism detection, fact checking and AI image detection, with API-key authentication and published documentation. |
| Browser extension | The extension scans Google Docs, web pages, or selected text and includes writing replay, typing behavior insights, and shareable reports. | Winston AI describes a Chrome extension for scanning highlighted webpage text and images in the browser. |
| Company legal name | Crunchbase lists the legal name as Originality.AI Inc. | Crunchbase lists the legal name as Winston AI inc. and founder Thierry Lavergne. |
| Headquarters | Collingwood, Ontario, Canada | Montreal, Quebec, Canada |
| Integrations | Originality.ai offers a Moodle integration for reviewing submitted work for AI-generated text and plagiarism within Moodle. | Official help pages list Google Classroom, WordPress and Chrome, Opera and Firefox browser extensions as integrations. |
| Notable news | LinkedIn announced an Originality.AI MCP server launch in October 2026 for ChatGPT and Claude workflows. | Winston announced its 5.0 detector on September 24, 2026, reporting 99.87% internal accuracy and perfect classification on the cited Chicago Booth benchmark. |
| Rating on Chrome Web Store | 3.8 out of 5 from 159 ratings | 4.8 out of 5 from 19 ratings |
| Rating on G2 | 4.4 out of 5 from 250 reviews | 4.4 out of 5 from 13 reviews |
| Rating on GetApp | 5.0 out of 5 from 7 reviews | 4.0 out of 5 from 1 review |
| Rating on Trustpilot | 4.6 out of 5 from 1,358 reviews | 3.9 out of 5 from 29 reviews |
| Security | The help center states uploaded scanner content is end-to-end encrypted and inaccessible to staff or other users unless shared. | Winston AI says it is GDPR compliant and that submitted content is never used to improve its models or capabilities. |
| Support | The pricing page says Pro support issues are typically resolved within 24 hours or less and Enterprise priority support issues typically within an hour or less. | The company invites users to contact [email protected] and says it will get back to them promptly. |
| What it does | Originality.AI is a cloud content-integrity platform combining AI-text detection, plagiarism checking, fact checking and readability scoring. | Winston AI is a cloud content-verification platform for AI detection, plagiarism checking, fact checking, writing feedback, essay grading and image analysis. |
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
Winston AI
- FreeFree
- Essential$60 a year
- Advanced$96 a year
- Elite$156 a year
- Essential$189 a month
- Advanced$2,914.50 a month
- Elite$4,924.50 a month
- Enterprise and Custom PlansPriced on request
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.
Winston AI
Winston AI checks text and images for AI-generated content and provides plagiarism checking and other content-integrity tools. Its detector identifies material from ChatGPT, Claude, Google Gemini, LLAMA, and other AI models. Users can paste text or upload DOCX, PNG, and JPG files; OCR extracts text from scans, pictures, and handwriting. An AI prediction map highlights passages and assesses text sentence by sentence, and reports can be downloaded or shared as printable PDFs. The homepage lists detection in 16 languages, including English, French, Spanish, German, Portuguese, Dutch, Polish, Italian, Romanian, Indonesian, Tagalog, Russian, Bulgarian, and simplified Chinese. Integration options include a Chrome extension, Google Classroom, WordPress, Zapier, and an API; the extension scans highlighted webpage text and images. Plans include a free option and a 14-day trial. Paid pricing starts at $10/mo billed annually; listed annual plans cost $60.00 USD, $96.00 USD, and $156 a year. Paid scans support up to 200,000 characters each. Annual subscriptions cannot be canceled during their term.