How we mark

Marking you can trust

Every paper marked against real exam board mark scheme principles — subject-specific engines built to behave like examiners, not generic AI.

Typically a few minutes
Typical turnaround: 20+
Subject engines: 5
UK exam boards

The methodology

Not one AI. Twenty examiners.

Most tools use one generic prompt for every subject. Examevo runs 20+ separate engines — each tuned to how that subject is actually marked across 5 UK boards.

Subject-specific rules

Each engine knows the exact marking principles for its subject — method marks in Maths, command words in Biology, provenance in History.

Multi-board mark schemes

AQA, Edexcel, OCR, WJEC/Eduqas, and CCEA — board-specific rules on every core GCSE engine, not generic AI rubrics.

Error classification

We identify method errors, unit slips, missing causal links, and incomplete definitions — so students know what to fix, not just that they were wrong.

Subject engines

What each engine checks

20+ GCSE subject engines — each with board-aware rules, not one-size-fits-all feedback.

SubjectSpecKey marking rules

MathematicsAQA 8300Method (M) + accuracy (A) marks. Follow-through on carried errors. Sign, arithmetic, and unit errors classified separately.
BiologyAQA 8461Command words, AO weighting, level-of-response on 6-mark questions, definitions checked against mark scheme wording.
ChemistryAQA 8462Balancing, moles calculations, flame tests, required practicals, units on every calculation.
PhysicsAQA 8463SI units, graph tolerance, required practicals, common misconception flags.
English LanguageAQA 8700AO1–6 weighting, paper-type conventions, level bands, SPaG on writing.
English LiteratureAQA 8702AO1–4, set texts and poetry clusters, context linked to meaning.
HistoryAQA 8145Second-order concepts, source provenance (NOPE), balanced argument, supported conclusions.
GeographyAQA 8035Quoted data, named examples, causal links, supported evaluate conclusions.
Business StudiesAQA 8132Context at Level 3+, chains of reasoning, calculation method + accuracy marks.
PsychologyAQA 8182Core studies structure, research methods, practical application.
Computer ScienceAQA 8525Pseudocode tracing, binary/hex with working shown, valid alternative algorithms accepted.
Religious StudiesAQA 80621/2/4/5/12 mark structures, development, religious reference, SPaG on extended answers.
SociologyAQA 8192Terminology, named perspectives and studies, both sides on evaluate questions.
French / Spanish / GermanAQA 8658+Communication mark first, accuracy separate, tense and agreement checks.

Internal QA benchmarks

What we measure (honestly)

Internal QA targets — not independent validation. Published so you know what we optimise for and what we are still proving with schools.

Mathematics
Total marks (80-mark paper)
±3 marks vs mark scheme
Method + accuracy mark separation; follow-through on carried errors
Biology / Chemistry / Physics
Per-question marks
±1 mark on 4–6 mark items
Command words, AO bands, required practical wording
English Language
Level of response bands
Same band on ~85% of 12-mark responses (internal QA)
AO5/AO6 descriptors; SPaG separated where applicable
English Literature
Level of response bands
Same band on ~80% of extended responses (internal QA)
Context linked to meaning; writer methods required at top bands
History / Geography
Extended writing
Indicative content + level alignment
Source provenance; named examples; supported conclusions
Modern Languages
Communication vs accuracy
Communication mark first; accuracy separate
Foundation leniency on morphology when gist is clear
All subjects
Predicted grade
Within ±1 grade vs raw mark boundaries (approximate)
Historical boundary profiles — not official series boundaries

The Examevo standard

Exam intelligence, not another drill

Full mock scripts, compounding feedback, and parent visibility — built for how students actually prepare.

Full-paper practice

Handwritten or online exam sessions — the same extended responses mocks require.

Improvement intelligence

Lost marks explained, answers improved, similar questions tried, patterns tracked across papers.

Parents stay informed

A parent dashboard with practice activity, improvement signals, and calm focus — included with student plans.

Honest limitations

What we are upfront about

AI marking is powerful but not perfect. These are the edges we tell every school and parent about.

Handwriting quality matters

Very unclear handwriting may reduce marking accuracy. Write clearly and photograph pages in good light before uploading.

Targets, not guarantees

We aim for high agreement with board mark scheme principles. Ambiguous handwriting or unusual question types may vary — see validation milestones.

Grade boundaries are approximate

Real boundaries are set after each series. Predicted grades use historical thresholds as a guide — not a promise of results day outcomes.

Continuous improvement

Getting better with every paper

Every submission helps us improve. When students flag feedback as incorrect, we review and update the relevant engine. When boards publish new examiner reports, we fold those insights into marking rules.

We are building towards independent validation — comparing predicted grades to real results. As that data builds, we will publish it here.

Schools interested in our validation programme:hello@examevo.com

Subject-specific engines
20+ GCSE engines with board-aware rules on all 5 UK boards
Internal QA benchmarks
Sample scripts marked against published mark schemes — targets published on this page
Student feedback loop
Students can flag incorrect marking from results; admins review and dismiss from the operations queue
School validation cohort
Recruiting schools to compare predicted grades to summer results
Independent examiner study
Third-party review of mark agreement on a fixed sample set

Ready to try it?

First paper free. No card required.

Try free →See all subjects →

Board-aware marking · Explainable feedback · Parent dashboard