AI Detector

Check AI-generated text and interpret the result clearly

The Certentis AI text detector analyzes statistical writing patterns. It reports Human, Mixed, and AI as separate probabilities and highlights sentences according to their generated probability.

An AI score is a statistical classification of the overall text pattern. It is neither a sentence ratio nor definitive proof of authorship.

AI Detector: Document Analysis

Design preview · sample media · not press mentions

03Interpret correctly

How accurate are AI detectors?

AI detectors provide probabilities, not proof. They compare language patterns with learned examples, so short texts, formal writing, translations, and heavily edited content can produce false classifications.

Analyzed Text

Linguistic patterns are analyzed section by section and highlighted subtly or clearly based on probability.

  • Do not use as the sole basis for academic consequences
  • Evaluate the entire text and flagged passages together
  • Treat Human + Mixed scores only as an additional reference value
04Class Values

Probabilities clearly broken down

Human 72 % · Mixed 18 % · AI 10 %

Probabilities clearly broken down
05In three steps

Check AI text in a structured way

01

Paste text

Paste the complete text so recurring patterns are not evaluated based on isolated sentences alone.

02

Start analysis

Certentis analyzes the document pattern and saves the resulting document and sentence values in your personal report.

03

Read overall score and passages

Evaluate all three classes together and review highlighted sections in the context of the document.

Check AI text in a structured way
06More than just a percentage

An AI writing detector with three visible classes

An AI content detector is useful only when its result remains explainable. Certentis shows document probabilities and sentence signals without presenting a technical estimate as certainty.

01

Display three separate classes

Human, Mixed, and AI remain visible as individual probabilities. A combined overview score does not replace the details.

02

Highlight sentence segments

Conspicuous passages are color-graded according to their generated probability so you don't just focus on the overall score.

03

Keep analysis in history

Reports can be reopened and reviewed within the context of the originally checked text.

07Control over black boxes

What makes Certentis different

An AI score is a statistical classification of the overall text pattern. It is neither a sentence ratio nor definitive proof of authorship.

01

Original remains visible

When humanizing, compare the original text and rewrite directly instead of accepting an opaque output.

Do not use as the sole basis for academic consequences

02

Probabilities are explained

AI detection is presented as statistical classification, not definitive proof of authorship or quality.

Evaluate the entire text and flagged passages together

03

Matched passages link to sources

Plagiarism matches remain linked to specific text passages and accessible sources.

Treat Human + Mixed scores only as an additional reference value

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.

Check essays and academic drafts

Review a complete essay or draft and see which passages appear statistically unusual. Treat the result as a signal, not proof of authorship.

Editorial quality assurance

Use the scan as an indicator in your review process without automatically inferring actual authorship.

Multilingual text analysis

Analyze supported texts within their respective language context while keeping the detector's limitations in mind.

09AI Detector

Frequently Asked Questions

More tools

Text refinement rarely stops at a single step

10Get started

Open Certentis and check your own text.