About Ariel
Ariel is an AI essay-marking platform for GCSE and A-Level English — built by a teacher, for teachers.
Why Ariel exists
Marking is the part of English teaching that never ends. A single class set of essays is an evening; a department's worth is a weekend. And the honest truth every teacher knows is that the standard applied to the twenty-eighth essay is not quite the standard applied to the second — not through any failure of professionalism, but because attention is finite.
Ariel was built to take the repetitive, consistency-draining part of marking off the teacher's desk — applying known mark-scheme criteria to every response in a class set with the same standard from the first essay to the last — while leaving the professional judgement exactly where it belongs: with the teacher.
The teacher always makes the final call
Ariel is a first marker, not a replacement marker. Every mark it produces is a draft, delivered with a full rationale — which Assessment Objectives drove the level, what textual evidence was used, and why this mark and not one above or below. The teacher reads the essay, reviews the reasoning, and adjusts or overrides any mark before it is approved.
That is the model we believe in: the AI handles the consistent application of criteria — the part that causes marking drift — and the teacher keeps the judgement no AI can replace.
Calibrated to the boards you teach
Ariel is calibrated for AQA and Edexcel, across GCSE English Language and Literature. The calibration is board-specific — not a generic rubric applied across every exam board — and it is tested against responses marked by trained examiners. We write about how we measure that accuracy, openly, on the blog.
Built in the UK, with student data taken seriously
Ariel is built and run in the UK. Student data is stored on UK servers, the platform is GDPR compliant, and student essays are processed for marking and never used to train AI models.
The person behind it
Ariel was founded by Sean, an English teacher who built the tool he wanted to use himself. It started from a practising classroom teacher's frustration with the marking load — and a conviction that AI should give teachers their evenings back without ever taking the professional decision out of their hands.