What is Winston AI?
Winston AI is a web tool that analyzes text and images to estimate whether they were written or generated by AI. The company states its detection model is updated with each notable LLM release and claims a 99.87% accuracy rate. Results come as a 0-100 score for human versus AI likelihood, plus a sentence-by-sentence prediction map that highlights which parts look machine-written.
Beyond AI detection, the platform bundles several checkers: an advanced plagiarism checker, an AI image detector for Midjourney, DALL-E and similar tools, a fact checker, a grammar checker, a readability score tool, a citation generator and a word counter. Users can paste text, upload .docx files or images (with OCR for scanned pages and handwriting), and export a printable PDF report. A paid API is also offered for connecting detection to other platforms.
Key features
- Detects text generated by ChatGPT, Claude, Google Gemini and other LLMs
- AI image and deepfake detection
- Advanced plagiarism detection
- Sentence-by-sentence AI prediction map
- OCR for scanned documents and handwriting
- Shareable PDF reports and team invitations
Who is it for
- Teachers and academic institutions
- SEO and editorial teams
- Writers and content creators
Pros and cons
- Claims industry-leading accuracy with low false positives
- Covers both text and image AI detection in one place
- Detection results are probabilistic estimates rather than proof
- Free plan is limited to a 14-day trial with 2,000 credits
Winston AI pricing
| Plan | Price | Includes |
|---|---|---|
| Free | 0 USD / month | 2,000 credits, 14 day trial |
| Essential | 9 USD / month | 100,000 credits per month; annual billing shown as 60 USD per year; list price 18 USD, 50% off with code BTS50 |
| Advanced | 14.50 USD / month | 200,000 credits per month; annual billing shown as 96 USD per year; list price 29 USD, 50% off with code BTS50 |
Prices copied from Winston AI pricing, checked October 12, 2026. Currency as shown by the vendor; taxes may apply.
Is Winston AI free?
There is a free trial. 14-day trial with 2,000 credits, including AI content detection, AI image detection, document scanning and PDF reports.
Winston AI alternatives
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 GPTZero | not listed | yes | AI detectors |
 Turnitin | not listed | ? | AI detectors |
 Pangram | 20 USD/mo | trial | AI detectors |
 Undetectable AI | 5.00 USD/mo | trial | AI detectors |
 Originality.ai | 12.95 USD/mo | yes | AI detectors |
 ZeroGPT | not listed | yes | AI detectors |
All alternatives to Winston AI →
FAQ
What is Winston AI used for?
AI content detector and plagiarism checker that flags text and images generated by ChatGPT, Claude, Gemini and other models, for educators, publishers and writers.
Is Winston AI free?
There is a free trial. 14-day trial with 2,000 credits, including AI content detection, AI image detection, document scanning and PDF reports.
How much does Winston AI cost?
The cheapest paid plan is 9 USD/mo (vendor pricing, October 12, 2026).
What are the best Winston AI alternatives?
Closest alternatives: GPTZero, Turnitin, Pangram, Undetectable AI, Originality.ai.
Data checked October 12, 2026 on the vendor website (gowinston.ai).