AI Detectors.io vs Winston AI
AI Detectors.io
aidetectors.io
Winston AI
gowinston.aiSide by side
| Figure | AI Detectors.io | Winston AI |
|---|---|---|
| Price from | $8.33/mo | $5/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 5 | 8 |
| Spec score · AI Content Detectors | 8.6 (#4) | 8.5 (#7) |
| API | The API is a REST interface that returns overall AI probability and can provide sentence-level scores. | 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 Chrome extension lets users select text on webpages for AI detection and displays sentence-level results. | Winston AI describes a Chrome extension for scanning highlighted webpage text and images in the browser. |
| Integrations | The vendor lists a Chrome extension, a Microsoft Word plugin, and an API as integrations; it says there are no LMS integrations at the moment. | Official help pages list Google Classroom, WordPress and Chrome, Opera and Firefox browser extensions as integrations. |
| Security | The privacy policy says the company uses reasonable technical and organizational safeguards, while noting it cannot guarantee absolute security. | Winston AI says it is GDPR compliant and that submitted content is never used to improve its models or capabilities. |
| Support | The help center says the team usually responds within one business day and provides email support. | The company invites users to contact [email protected] and says it will get back to them promptly. |
Plans
AI Detectors.io
- FreeFree
- Starter (API)Free
- Developer (API)$29 a month
- Premium$100 a year
- Enterprise (API)Priced on request
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
AI Detectors.io
AI Detectors.io analyzes text associated with major language models, returning an overall AI probability, confidence scores, and sentence-level results. The site also offers a humanizer, citation verification, plagiarism checking, grammar tools, and watermark removal. Its detector says it examines perplexity, burstiness, n-gram patterns, and stylometric fingerprints. The company reports 95.2% accuracy and 3.1% false positives from an April 2026 benchmark of 500 texts. The detector is trained and benchmarked on English; it returns scores for other languages, but those languages are outside that benchmark. Access is available through the web, Chrome extension, Microsoft Word add-in, and REST API. The Word add-in supports Word 2016 and later on Windows and Mac, as well as Word for the web, and can produce PDF reports. The free plan includes 10,000 words per month and a 500-word-per-use limit. Premium is listed at $8.33 a month, billed annually, with scans up to 25,000 words. Submitted text may be processed by third-party providers and retained as long as needed to support the service.
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.