AI Tools · AI Detectors

Winston AI

AI content detector that checks text for AI writing and plagiarism and flags AI-generated or deepfake images.

Our take: Winston AI is an AI content detection platform that identifies whether text was written by a human or generated by tools like ChatGPT, Claude, or Gemini.

Best forEducators and publishers

ReviewedOct 2026Free Trial

8.05 criteria · see breakdown

Try WinstonFree trial (2K credits); from $10/mo annual

Winston AI is an AI content detector. It estimates whether text was written by AI tools such as ChatGPT, Claude or Gemini, checks for plagiarism and flags AI-generated or deepfake images. A 14-day trial includes 2,000 credits; paid plans start at $18 a month, or $10 a month billed yearly.

The bottom line

The go-to AI detection tool for educators and publishers who need a fast, accurate human-vs-AI verdict on any piece of text.

Our score

Reviewed by the Conversion Gems editorial team. Hover a facet to focus it; click to pin.Tap a facet to focus it.

Community ratings

Shown for context only. Our score is independent.

4.4

10+ reviews

Trustpilot

3.6

20+ reviews

3.9 / 5 aggregate · across 2 sources

Third-party ratings shown verbatim; aggregate weighted by review volume.

What it is, and why we rate it

One line each. Open a row for detail.

What it really isWinston AI — AI-generated content detector for text and images.

Our takeWinston AI is an AI content detection platform that identifies whether text was written by a human or generated by tools like ChatGPT, Claude, or Gemini.

It also flags plagiarism and scans images via OCR. The monthly entry price is $18/mo (or $10/mo on annual billing), with a 2,000-credit free tier for 14 days.

Why we rate itWinston AI puts AI text detection, plagiarism checks, AI image and deepfake detection and shareable reports in one interface.

It reports 99.87% accuracy for its Winston 5.0 model in its own English-language tests; that figure is the vendor's claim, not an independent result.

The catchCredits are charged per word (2 per word for plagiarism checks), unused credits don't roll over, and yearly plans can't be cancelled mid-term.

Best / not good for

Best for

Teachers and academic institutions verifying student submission authenticity
SEO content teams ensuring human-authored content before publication
Publishers and brands auditing freelancer or agency deliverables for AI use

Not good for

Teams needing a full AI writing or content generation suite
High-volume operations on tight budgets where per-word credit costs accumulate fast
Organizations requiring on-premise deployment or strict data residency

Trade-offs

Friction report

Trade-offs to know before signing up.

Time to value
Fast: paste text or upload a doc and get a scored report in seconds — no complex setup required.
Scale breakpoint
Credit quotas become a bottleneck for large institutions running hundreds of documents per day; Elite tier limits or enterprise custom plans needed beyond ~500K words/mo.
Walled garden
Low: shareable PDF reports and an open API let results flow into external workflows; Chrome extension and WordPress plugin reduce copy-paste friction.

Still a fit?

If none of these block you, start on the free plan.

Try Winston

Winston AI pricing

Plan	Monthly	Billed yearly	Credits per month	Adds
Free trial	$0 (14 days)	-	2,000 in total	AI text and image detection
Essential	$18	$10/month ($120/year)	100,000	Writing feedback, OCR, basic image scans
Advanced	$29	$16/month ($192/year)	200,000	Advanced plagiarism detection, advanced image scans, up to 5 team members
Elite	$49	$26/month ($312/year)	500,000	Unlimited team members, top-up credits

Standard prices from Winston AI's pricing page, checked 2 October 2026; a 50% coupon was also advertised that day. AI detection uses 1 credit per word and plagiarism checks 2 credits per word. Enterprise plans are priced on request.

A look inside

Frequently Asked Questions

Is Winston AI free?

Only as a trial. The free tier gives 2,000 credits for 14 days. Paid plans start at $18 a month, or $10 a month billed yearly ($120), for 100,000 credits a month (checked 2 October 2026).

How accurate is Winston AI?

Winston AI reports 99.87% overall accuracy for its Winston 5.0 model in its own tests on English documents. That is a vendor claim, not an independent test. No AI detector is reliable enough to be the only evidence in an academic-integrity case.

Does Winston AI check for plagiarism?

Yes. Advanced plagiarism detection is included on the Advanced ($29 a month) and Elite ($49 a month) plans. Plagiarism checks use 2 credits per word.

Which languages does Winston AI support?

For AI text detection its help center lists 16 languages: English, German, French, Dutch, Spanish, Portuguese, Italian, Polish, Indonesian, Tagalog, Chinese, Romanian, Russian, Ukrainian, Bulgarian and Azerbaijani.