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Decision snapshot

Fast-read signals for fit, pricing, and trust.

Category
Content Marketing and Copywriting
Best for
AI content detector
Pricing
Freemium
Access
Free plan available

What is this tool?

Winston AI is an AI-content detection tool that flags whether text or images appear AI-generated, with sentence-level highlighting, a plagiarism checker, and shareable reports. It is aimed at educators, publishers, and agencies who need to review content provenance before they trust or publish it. It is built to flag likely AI involvement, not to prove authorship. Detection is probabilistic, so results inform a human judgement rather than settle it.

By QT Desk
Read full overview

You paste or upload text (or an image) and it returns a human-versus-AI assessment, highlighting the sentences that look AI-generated so you can see where to focus. A plagiarism checker flags matching sources, and results export as shareable reports for teams or institutions.

It suits teachers, editors, content managers, and agencies who need to vet submissions or published work, and offers an API and a site-certification option for teams embedding checks into a workflow.

Detection is a probability, not a verdict: AI and human writing overlap, so flagged text warrants a human review rather than an automatic conclusion, and no detector catches every case.

Is this right for you?

Quick fit check against how you actually work.

AI content detector
Choose this if
  • You vet submissions or published content for AI use
  • You want sentence-level flags, not just a score
  • You need shareable reports for teams or institutions
  • You also want a plagiarism check in one place
Consider alternatives if
  • You expect a definitive proof of authorship
  • You only check the occasional sentence
  • You need a writing or humanizing tool instead

Key features

What you can actually do with this tool.

AI text detection

Assesses whether text appears AI-generated and highlights the sentences that drive the result, so a review can focus on specific passages.

AI image detection

Extends the same provenance check to images, flagging likely AI-generated visuals alongside text.

Plagiarism checker

Flags passages that match outside sources, supporting originality checks in the same pass as detection.

Shareable reports

Generates clear reports you can pass to teams, clients, or institutions to document a review.

Writing feedback

Surfaces feedback on the text, adding context beyond the raw detection result.

API and site certification

Offers an API and a website-certification option for teams that want checks built into a workflow.

Plans & pricing

Pricing tiers and what's included in each.

Winston AI has a free tier with 2,000 credits for 14 days — enough to scan approximately 2,000 words of AI content. Paid plans: Essential at $18 per month ($10 on annual billing) for 80,000 credits per month; Advanced at $29 per month ($16 annual) for 200,000 credits per month and up to 5 team members; Elite at $49 per month ($26 annual) for 500,000 credits per month and unlimited team members. One credit equals one word for AI detection; plagiarism checks use 2 credits per word.

Free

$0
  • 2,000 credits (14-day trial) — ~2,000 words AI detection

Essential

$18/ month
  • 80,000 credits/mo, plagiarism checking, PDF reports

Advanced

$29/ month
  • 200,000 credits/mo, up to 5 team members

Elite

$49/ month
  • 500,000 credits/mo, unlimited team members, AI image detection
Pricing last checked: Jul 8, 2026Official pricing pagePricing may have changed. Always verify before purchasing.

How to use this tool

A short path to first value.

  1. Paste or upload the text or image you want to check.

  2. Run the scan and read the human-versus-AI assessment.

  3. Review the sentence-level highlights to see what was flagged.

  4. Run the plagiarism check where originality matters.

  5. Export a report to share with a team or institution.

  6. Treat the result as input to a human decision, not a verdict.

Frequently asked

Common questions about this tool, answered.

How reliable is AI detection?

It is probabilistic — human and AI writing overlap, so results indicate likelihood and should guide a human review rather than serve as proof of how something was written.

Can it be wrong about human writing?

Yes — false positives are possible, which is why sentence-level flags exist: they show what to examine so a person makes the final call.

Is my pasted text kept private?

Data handling is a buyer-relevant question; review the current privacy terms before submitting sensitive or student work, as practices can change.

Does it work beyond English?

It covers multiple AI models and languages, though confidence can vary by language, so weigh results accordingly for non-English text.

How it compares

Context for choosing between this tool and alternatives.

Weigh Winston AI against other detectors on coverage and workflow: it pairs text and image detection with plagiarism and reports in one place. GPTZero is a common alternative for text classification; Copyleaks leans toward plagiarism and enterprise. Compare on whether you need detection, originality, and shareable documentation together or a single focused check.

Similar AI tools to consider

Other tools that show up for the same kind of work.

GPTZero

Freemium

Visit toolCompare

Copyleaks

Freemium

Visit toolCompare

Undetectable AI

Paid

Visit toolCompare
Verified against the official siteLast verified Jul 8, 2026