AI Probability Score
Receive a clear estimate showing how likely the submitted text is to contain AI-generated patterns.
Free · Unlimited · No Signup
Free Copyleaks AI Detector
Check whether your content may be AI-generated with a fast, independent AI content detector. Paste your text and receive a clear AI probability analysis in seconds.
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The AI detection result will appear here.
Free to useNo signup requiredSentence-level analysisIndependent from Copyleaks
Check AI-Generated Content Instantly
Analyze essays, articles, emails, reports and assignments for writing patterns that may indicate AI-generated or heavily AI-assisted content.
Sentence-Level Insights
Review specific sentences that may require closer inspection instead of relying on one overall score.
Independent Second Opinion
Compare results with other tools and use the score as one signal rather than absolute proof of authorship.
Independent AI Checker
A Free Alternative to Copyleaks AI Detector
Copyleaks is a well-known AI detection and plagiarism platform. This independent tool is designed for users who want a simpler way to run an initial AI check without creating an account or purchasing credits.
- Check text without signing up
- Review potentially AI-written sentences
- Run a fast second opinion
- Compare AI detection results
- Understand why text may appear AI-generated
Trademark notice: This website is not affiliated with, endorsed by, or operated by Copyleaks.
Built for fast, low-friction checks
Use the detector directly from the homepage. No complicated workflow, institutional setup, or account creation is required for an initial scan.
Designed for responsible review
Detection results are probabilistic and should support human judgment—not replace it.
How to Use the AI Detector
Run a quick AI content check in three simple steps.
Paste Your Text
Paste the essay, article, report, email, or assignment you want to analyze.
Start the AI Check
Click “Check for AI” to analyze linguistic and statistical writing patterns.
Review the Results
Use the overall score and sentence-level feedback as supporting signals.
What the AI Checker Analyzes
AI detectors look for patterns in language rather than a hidden ChatGPT label.
Predictability
Statistically predictable wording and sentence structures.
Sentence Variation
Changes in sentence length, rhythm, structure, and expression.
Repetitive Patterns
Repeated transitions, phrases, conclusions, or paragraph structures.
Writing Consistency
Highly consistent grammar, tone, and sentence construction.
Who Can Use This AI Content Detector?
A practical review tool for education, publishing, content, and business workflows.
Students
Review assignments when AI was used for brainstorming, outlining, grammar support, or drafting.
Teachers
Use detection as an initial signal alongside drafts, citations, classroom work, and writing history.
Writers & Bloggers
Check whether edited, outsourced, or AI-assisted content appears overly automated.
Editors
Add another quality-control layer when reviewing guest posts, articles, and freelance submissions.
Businesses
Review marketing copy, reports, applications, and support content for excessive AI dependence.
Publishers
Screen large volumes of submissions while keeping editorial review at the center of decisions.
Can Copyleaks Detect ChatGPT?
Copyleaks and other detectors attempt to identify patterns commonly found in ChatGPT-generated writing. Results can vary based on the AI model, text length, editing level, writing type, and whether human and AI writing were combined.
Learn more: Can Copyleaks Detect ChatGPT? →How Accurate Is Copyleaks?
Real-world results can include false positives, false negatives, and changes after minor edits. Important decisions should never rely on one AI detector score alone.
Read our accuracy analysis →Copyleaks AI Detector vs Our AI Checker
Choose based on your workflow, not just one detection score.
| Feature | Our AI Checker | Copyleaks |
|---|---|---|
| Free initial check | Yes | Depends on current plan |
| Signup required | No | May be required |
| Sentence-level feedback | Yes | Available |
| AI probability result | Yes | Yes |
| Plagiarism detection | No | Available |
| Independent second opinion | Yes | No |
| Official Copyleaks product | No | Yes |
AI Detection Is Not Proof
A high score does not prove that someone used ChatGPT, and a low score does not prove that content was written entirely by a human.
Important: Do not use an AI detector score as the sole basis for academic punishment, employment decisions, account restrictions, or accusations of misconduct.
Frequently Asked Questions
Answers to common questions about Copyleaks, ChatGPT detection, and AI checker accuracy.
Is this the official Copyleaks AI Detector?
No. This is an independent AI detection tool and is not affiliated with, endorsed by, or operated by Copyleaks.
Is this Copyleaks AI Detector alternative free?
The core AI text check is offered for free. Any limits or premium features should be clearly explained before a scan begins.
Can AI detectors identify ChatGPT text?
They can estimate whether text contains patterns associated with AI-generated writing, but cannot confirm authorship with complete certainty.
Can Copyleaks detect edited ChatGPT content?
It may still identify edited AI content, but results depend on how substantially the text was changed and how much original reasoning was added.
Can Copyleaks detect Grammarly or QuillBot?
Basic corrections are different from full AI generation. Extensive rewriting or paraphrasing may still affect detection results.
Why does human writing get flagged as AI?
Formulaic structure, repetitive language, short samples, grammar correction, and non-native writing patterns can all influence a detector.
Should teachers trust AI detector scores?
Scores should be treated as an initial signal and reviewed alongside drafts, sources, prior writing, classroom performance, and direct discussion.
Check Your Text for AI-Generated Patterns
Paste your content into our free AI checker and receive a clear, independent analysis in seconds.