Built by a teacher, for teachers
Mark a whole class in an evening.
Bring your own rubric for any assessment — an essay, a lab report, a source analysis. AI gives every criterion a draft score and the exact evidence behind it. You review, adjust and confirm — you're always the marker of record.
You are the marker, AI is your assistant.
- Evidence for every score
- Student work stays private
- Excel & PDF reports
Tough enough for IB Internal Assessments and Extended Essays — simple enough for a weekly book report.
Sample student
18 / 20Criterion 3 · Analysis & reasoning
AI suggested 4 — evidence
“Weighs competing interpretations before reaching a justified conclusion.”
Pre-marking…
How it works
Seven clear steps, from a stack of PDFs to a finished report.
- 1
Create a class
Name it and add the year, level or subject — e.g. “Year 10 English” or “12 IB Maths”.
- 2
Add an assessment
Give it a title, like “Essay 2 — Persuasive Writing” or “Term 3 Exam”. The max total comes from your rubric.
- 3
Add the rubric
Paste your own rubric, upload it as a PDF, or build it by hand. Claude tidies it into criteria and levels — you confirm. It's always your rubric.
- 4
Upload the files
Drag in the student PDFs. The text is read out of each one so it can be marked.
- 5
Pre-mark with Claude
A careful first pass: a suggested level, a quoted piece of evidence and a one-line reason for every criterion.
- 6
Review & adjust
Click any level to change it, totals update live, add your comments — then confirm each student.
- 7
Download the report
One click gives you a formatted Excel workbook and a PDF class report.
Evidence behind every score
AI quotes the exact line and gives a one-line reason for each criterion — so you can check its thinking in seconds, then adjust.
An optional AI-use check
Run a check on any submission for an at-a-glance 1–10 signal of how AI-written the work reads, with the passages that prompted it. A cue to look closer — never an accusation, and never shown to students.
Privacy by design
Files stay on the server, only de-identified text is sent for marking, and nothing is ever used to train an AI model.
Built around your judgment
You stay the marker of record
The AI marks against the rubric you set and shows its reasoning — a short quote and a one-line justification for every score. It never pretends to be the final word.
Student work is handled with care: files stay on the server, only de-identified text is used for marking, and nothing is used to train AI models.