Shortlist by what you need
Start here if you know why you are leaving Winston AI.
Want the closest match?
ZeroGPT.ccMost similar to Winston AI in what it does, its category and its price.
Visit (opens ZeroGPT.cc in a new tab)Need a free plan?
Originality.AIHas a free plan, rated 4.5 out of 5.
Visit (opens Originality.AI in a new tab)Want the lowest price?
CopyleaksFrom $9.99/mo, the lowest starting price here.
Visit (opens Copyleaks in a new tab)Want the best rated?
GPTZeroRated 4.4 out of 5 in our review, against 3.5 for Winston AI.
Visit (opens GPTZero in a new tab)
At a glance
Green means better than Winston AI, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 Winston AIBaseline | 3.5 | Free | Yes | AI content and image detection claimed accurate 99.98% of the time - sentence-level highlights, plagiarism checks, and deepfake detection in one report. | |
| ZeroGPT.cc | 2.9−0.6 | Free | Yes | Paste text, get sentence-by-sentence AI-detection with color-coded highlighting - free, unlimited checks against GPT, Claude, Gemini, and more, no relation to zerogpt.com. | vs Winston AI |
| Copyleaks | 4.2+0.7 | $9.99/mo | Yes | Copyleaks scans text and images for plagiarism and AI-generated content across dozens of languages for schools and businesses. | vs Winston AI |
 ZeroGPT | 3.5Same | Free | Yes | AI detection across text, image and video, with sentence-level highlighting. | vs Winston AI |
| GPTZero | 4.4+0.9 | $15/mo | Yes | An AI detector built at Princeton that identifies LLM-generated text and now backs Superhuman's authenticity tools | vs Winston AI |
 Undetectable AI | 3.2−0.3 | Free | Yes | Detects AI content across text, image, audio and video, and also rewrites text to evade detection. | vs Winston AI |
| Originality.AI | 4.5+1.0 | $12.95/mo | Yes | An AI and plagiarism detector built for publishers who need to verify content before it goes live | vs Winston AI |
 AutoBlogging.Pro | 3.5Same | Free | Yes | GPT-3.5/4-powered articles publish straight to WordPress, SEO-optimized and plagiarism-checked, in 190+ languages - free plan included, no card required. | vs Winston AI |
 Writecream | 3.7+0.2 | $29/mo | Yes | 75-plus writing tools with an autonomous SEO agent that reads competitors first. | vs Winston AI |
The alternatives in detail
In order of how closely each one matches Winston AI.
ZeroGPT.cc
2.9Free
vs Winston AI−0.6
Paste text, get sentence-by-sentence AI-detection with color-coded highlighting - free, unlimited checks against GPT, Claude, Gemini, and more, no relation to zerogpt.com.
- Sentence-by-sentence AI-detection with color-coded highlighting
- Readability scoring alongside detection
- Multi-model detection - GPT, Claude, Gemini, and more
Genuinely free and unlimited, no paywall on core detection
AI-detection accuracy is inherently imperfect and improves-then-degrades as generative models evolve
Copyleaks
4.2$9.99/mo
vs Winston AI+0.7
Copyleaks scans text and images for plagiarism and AI-generated content across dozens of languages for schools and businesses.
- Combined plagiarism and AI-content detection in one scan
- Multi-language support across dozens of languages
- Image-based AI detection alongside text scanning
Combines plagiarism and AI-detection in one subscription instead of two tools
Credit-based pricing gets confusing to estimate for high-volume users
ZeroGPT
3.5Free
vs Winston AISame
AI detection across text, image and video, with sentence-level highlighting.
- AI text detection with sentence-level highlighting
- DeepAnalyse multi-stage detection method
- AI image and video detectors
Sentence highlighting supports a conversation rather than an accusation
AI detection has a documented false-positive problem on non-native English
GPTZero
4.4$15/mo
vs Winston AI+0.9
An AI detector built at Princeton that identifies LLM-generated text and now backs Superhuman's authenticity tools.
- AI-generated text detection across ChatGPT, Claude, Gemini, and other major LLMs
- Plagiarism detection bundled alongside AI detection in the same scan
- Hallucination detection that flags unsupported or fabricated claims in a document
One of the most established and widely recognized names in AI detection, with a large existing user base
AI detection as a category carries an inherent false-positive risk on any tool, including this one
Undetectable AI
3.2Free
vs Winston AI−0.3
Detects AI content across text, image, audio and video, and also rewrites text to evade detection.
- AI text detection with flagged sections
- Image, audio and video AI detection
- Fake PDF detector
Detection across image, audio and video, not just text
Ships a humanizer for evading detection, with students among named users
Originality.AI
4.5$12.95/mo
vs Winston AI+1.0
An AI and plagiarism detector built for publishers who need to verify content before it goes live.
- AI content detection independently benchmarked for accuracy against competing detectors
- Live-web plagiarism checking rather than a static, outdated reference database
- Bundled fact-checking, grammar review, and readability scoring in the same platform
Accuracy claims are independently benchmarked rather than only self-reported
No unlimited free tier; the free AI checker is capped at a small word count
AutoBlogging.Pro
3.5Free
vs Winston AISame
GPT-3.5/4-powered articles publish straight to WordPress, SEO-optimized and plagiarism-checked, in 190+ languages - free plan included, no card required.
- GPT-3/3.5/4-powered article generation
- Automatic WordPress publishing via plugin
- Built-in plagiarism detection and uniqueness verification
Publishes directly to WordPress, closing the loop without manual copy-paste
Free tier is a one-time 5 articles, not a recurring monthly allowance
Writecream
3.7$29/mo
vs Winston AI+0.2
75-plus writing tools with an autonomous SEO agent that reads competitors first.
- Lexi autonomous SEO agent analysing competitors
- Article writer with real-time SEO scoring
- Cold email and LinkedIn message generators
Reads what currently ranks before writing rather than guessing
Publish-ready is the vendor's description, not an editorial standard
FAQ
Questions people ask
Is Winston AI free?
Winston AI has a free plan.
What is the best free alternative to Winston AI?
Originality.AI is the highest-rated alternative here with a free plan (4.5 out of 5). Other free options: GPTZero, Copyleaks, Writecream.
What is the cheapest alternative to Winston AI?
Among paid plans, Copyleaks has the lowest starting price (from $9.99/mo). If you need it free, start with Originality.AI.
How did you pick these alternatives?
We match tools on what they do, their category and their price, using the details in our directory. Ratings come from our reviews and reader reviews.