See all three classes
Human, Mixed, and AI are reported as separate probabilities, so a single combined value does not obscure the details.
AI Detector
AI detector for clear, contextual text analysis
The Certentis AI Detector analyzes statistical language patterns that may indicate human or AI-generated text. It reports Human, Mixed, and AI probabilities, with notable sentence-level signals shown in context.
An AI detector’s probabilities describe patterns across the submitted text. They are not percentages of sentences and do not prove who wrote it.
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AI detector
Try this Certentis tool once without an account and get a real result.
Protected processingAbuse prevention using a necessary device cookie and a pseudonymized network signal. Your text never ends up in advertising or analytics.
Original
Your text to check
AI analysis
Sentence signals and classification
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03Interpret results carefully
How reliable is an AI content detector?
AI detectors provide probabilities, not proof of authorship. They compare language patterns with learned examples, and results can be affected by short texts, formal language, translations, or editing. False positives and false negatives remain possible. An AI detector for essays should therefore support careful review, not replace it.
Submitted text
Language patterns are analyzed throughout the text, with sentence-level signals highlighted subtly or prominently according to their strength.
- Do not use the result as the sole basis for academic or other serious consequences
- Review the complete text and flagged passages together
- Treat Human, Mixed, and AI probabilities as additional guidance, not a final judgment
04Class probabilities
Probabilities explained clearly
Human 72 % · Mixed 18 % · AI 10 %
05A three-step review
How to use an AI text detector responsibly
- 01
Submit text
Submit the complete text so recurring patterns are assessed across the document, rather than from isolated sentences alone.
- 02
Run the analysis
Certentis analyzes the document’s language patterns and saves its document and sentence-level values to your personal report.
- 03
Review the results
Consider Human, Mixed, and AI together, then review highlighted passages in the context of the complete document.
06More than one score
A clearer way to review AI-generated text
An AI checker is most useful when its assessment is transparent. Certentis shows document probabilities and sentence-level signals without presenting statistical estimates as certainty.
Review sentence-level signals
Highlighted passages show where notable language patterns appear and vary in intensity, helping you assess them alongside the overall result.
Keep your reports
Reports are retained for authenticated users and can be reopened with the reviewed text and its analysis.
07Control instead of a black box
What Certentis does differently
An AI detector’s probabilities describe patterns across the submitted text. They are not percentages of sentences and do not prove who wrote it.
- 01
The original stays visible
When humanizing, compare the source text with the revised version instead of having to accept an opaque response.
Do not use the result as the sole basis for academic or other serious consequences
- 02
Probabilities are explained
AI detection is presented as a statistical assessment, not proof of authorship or quality.
Review the complete text and flagged passages together
- 03
Sources lead to the original
Plagiarism matches remain linked to specific passages and accessible sources.
Treat Human, Mixed, and AI probabilities as additional guidance, not a final judgment
08 · Open evidence
Read the metrics. Review the method. Know the limits.
Certentis separates results, test protocol, and product comparison so it remains clear what was measured and what the test cannot establish.
09Typical use cases
Three situations where this tool can be used
Check term papers and essays with an AI detector
Check a complete draft with the AI detector and review passages that show unusual statistical patterns. An AI checker provides an indication, not proof of authorship.
Editorial review and quality assurance
Use the AI detector as one indication during editorial review. Do not infer actual authorship automatically from the result.
Multilingual text analysis
Review supported texts in their relevant language context, while considering the limitations of statistical AI detection. An AI text detector cannot establish authorship on its own.
10Clear plans
One balance. Three tools. Total control.
Choose a subscription for regular work or permanent credits for individual projects. Humanizer, AI analysis, and plagiarism reports stay in one workspace.
- 01Shared credits
- For Humanizer, AI analysis, and plagiarism reports. Usage is shown transparently for each tool.
- 02Subscription or one-time
- Fits your work rhythm.
- 03Plagiarism by word
- Each checked word costs one credit.
You’ll see the final total and tax details before purchase in the Stripe checkout.
11AI Detector
Frequently asked questions
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