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High school

For English departments and districts

Teachers can check papers free with a school email. Students 13 and over can hand in a verification link that shows their writing passed. A district gets one price for every school.

For English teachers

A free teacher account with a school email: 50 papers a month and 15 deep checks a month. Paste a paper, see the result and the sentences behind it.

What students hand in

Students 13 and over can make their own account and hand in a verification link with their work. The teacher can paste the work into the link page to confirm it matches.

What the mark rests on

Verified human: the standard detector read this text as human. It covers this text on this date. It does not show who wrote it or how. Our standard detector flagged 0 of 600 human-written papers in its release test (95% upper bound 0.50%), 1 of 549 held-out human papers, as Mixed (upper bound 0.86%), and 5 of 9,305 real student essays, all as Mixed, none as AI. It called 20 of 176 humanized AI papers human and, in a newer test of one humanizer tool, 231 of 255 rewritten long papers and 122 of 136 rewritten essays human, so a humanizer tool can get text past it.

See the model card

Student work

Our detector scores the text in memory and de-identifies any personal information for additional training.

Privacy policy

For a school or district

Schools and campuses: $2 to $3 per student a year, with a $2,000 minimum. Districts: $1.50 to $2.50 per student a year, with a $5,000 minimum. By quote.

Limits

A flag should be reason to look closer and not verified proof of cheating. It is not a plagiarism check.

Price it for your school.

Tell us how many teachers and students, and someone replies by email.