Shortlist by what you need
Start here if you know why you are leaving Originality.AI.
Want the closest match?
CopyleaksMost similar to Originality.AI in what it does, its category and its price.
Visit (opens Copyleaks in a new tab)Need a free plan?
GPTZeroHas a free plan, rated 4.4 out of 5.
Visit (opens GPTZero in a new tab)Want to pay less than Originality.AI?
MyDetectorFrom $6.99/mo, against from $12.95/mo for Originality.AI.
Visit (opens MyDetector in a new tab)Want the best rated?
WriterBuddyRated 3.7 out of 5 in our review, against 4.5 for Originality.AI.
Visit (opens WriterBuddy in a new tab)
At a glance
Green means better than Originality.AI, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 Originality.AIBaseline | 4.5 | $12.95/mo | Yes | An AI and plagiarism detector built for publishers who need to verify content before it goes live | |
| Copyleaks | 4.2−0.3 | $9.99/mo$2.96 less | Yes | Copyleaks scans text and images for plagiarism and AI-generated content across dozens of languages for schools and businesses. | vs Originality.AI |
| GPTZero | 4.4−0.1 | $15/mo$2.05 more | Yes | An AI detector built at Princeton that identifies LLM-generated text and now backs Superhuman's authenticity tools | vs Originality.AI |
 Undetectable AI | 3.2−1.3 | Free | Yes | Detects AI content across text, image, audio and video, and also rewrites text to evade detection. | vs Originality.AI |
| WriterBuddy | 3.7−0.8 | Free | Yes | 40+ academic writing tools in one place - co-writer, plagiarism checker, citation generator (MLA/APA/Chicago), ChatPDF - across 25+ languages. | vs Originality.AI |
| MyDetector | 2.4−2.1 | $6.99/mo$5.96 less | Yes | Sells the AI detector and the tool for defeating it from the same navigation bar. | vs Originality.AI |
 Winston AI | 3.5−1.0 | 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. | vs Originality.AI |
 ZeroGPT | 3.5−1.0 | Free | Yes | AI detection across text, image and video, with sentence-level highlighting. | vs Originality.AI |
 JustDone | 2.7−1.8 | Not listed | No | Eleven student writing tools, two of which cancel each other out. | vs Originality.AI |
The alternatives in detail
In order of how closely each one matches Originality.AI.
Copyleaks
4.2$9.99/mo
vs Originality.AI$2.96 less−0.3
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
GPTZero
4.4$15/mo
vs Originality.AI$2.05 more−0.1
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 Originality.AI−1.3
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
WriterBuddy
3.7Free
vs Originality.AI−0.8
40+ academic writing tools in one place - co-writer, plagiarism checker, citation generator (MLA/APA/Chicago), ChatPDF - across 25+ languages.
- Co-Writer: brainstorming, autocomplete, grammar checking
- Citation generator: MLA, APA, Chicago formats
- Plagiarism checker and AI content detector
Covers the full academic writing workflow, not just drafting
40+ tools means real exploration to find the right one for a task
MyDetector
2.4$6.99/mo
vs Originality.AI$5.96 less−2.1
Sells the AI detector and the tool for defeating it from the same navigation bar.
- Free AI detection on pasted or uploaded content
- Detection report with per-section breakdown
- Sample texts including a mixed AI-and-human case
Provides a mixed AI-and-human sample, the realistic disputed case
Sells an AI Humanizer to defeat the detector it also sells
Winston AI
3.5Free
vs Originality.AI−1.0
AI content and image detection claimed accurate 99.98% of the time - sentence-level highlights, plagiarism checks, and deepfake detection in one report.
- AI text detection claimed 99.98% accurate across major LLMs
- AI-generated image and deepfake detection
- Plagiarism checking alongside AI detection
Free tier available with no credit card required
Paid tier pricing isn't shown on the homepage
ZeroGPT
3.5Free
vs Originality.AI−1.0
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
JustDone
2.7Not listed
vs Originality.AI−1.8
Eleven student writing tools, two of which cancel each other out.
- Plagiarism checker and citation generator
- Summariser, paraphraser and grammar checker
- AI chat that reads PDFs and websites
Most of the toolkit is ordinary, useful study software
Ships an AI humanizer beside an AI detector, defeating both
FAQ
Questions people ask
Is Originality.AI free?
Originality.AI has a free plan, and paid plans start from $12.95/mo.
What is the best free alternative to Originality.AI?
GPTZero is the highest-rated alternative here with a free plan (4.4 out of 5). Other free options: Copyleaks, WriterBuddy, Winston AI.
What is the cheapest alternative to Originality.AI?
Among paid plans, MyDetector has the lowest starting price (from $6.99/mo). If you need it free, start with GPTZero.
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.