Question 1

Is it free?

Accepted Answer

Yes. The checker is free to use and does not require an account.

Question 2

Is my text stored?

Accepted Answer

No. Your text is processed locally in your browser and is not sent to our servers.

Question 3

How accurate is it?

Accepted Answer

No AI detector is consistently accurate across every kind of writing. Results are estimates and can be wrong in both directions.

Question 4

Why was my human writing flagged?

Accepted Answer

Formal, academic, technical, repetitive, or highly polished writing can resemble patterns learned by the classifier. A flag is not proof of AI use.

Question 5

What models does it detect?

Accepted Answer

The classifier was trained to distinguish examples of human and machine-generated text. It cannot reliably identify which specific writing model produced a passage.

Question 6

Does it work on short text?

Accepted Answer

It can score short text, but short results are less reliable because the classifier has fewer language patterns to evaluate.

Question 7

Can it be fooled?

Accepted Answer

Yes. Editing, paraphrasing, casual style, and other changes can reduce detection. We do not recommend treating any result as a guarantee.

Question 8

Does it detect every AI model?

Accepted Answer

No. Writing systems and editing techniques change quickly, and a classifier may perform differently on text unlike its training data.

Question 9

Which languages are supported?

Accepted Answer

The underlying model is intended primarily for English. Results in other languages should not be relied upon.

Question 10

What does the percentage mean?

Accepted Answer

A passage percentage is the classifier's estimated AI probability. The headline percentage is the share of words in passages scoring at least 85%.

Question 11

Why is the first check slower?

Accepted Answer

Your browser must download the open-source model files. It may cache them, so later checks are usually faster.

Question 12

Are uploaded files sent anywhere?

Accepted Answer

No. Text and Word files are read locally in your browser. Only their extracted text enters the checker.

Question 13

Should educators use this as evidence?

Accepted Answer

Never as sole evidence. Review drafts, version history, sources, prior work, and the student's explanation of their process.

Question 14

Does this prove who wrote something?

Accepted Answer

No. A statistical classifier cannot establish authorship, intent, or misconduct.

Frequently asked questions