GradeOrbit vs AegisMark
Capped school plans against uncapped teacher seats.
Information about AegisMark checked 19 October 2026
In short
AegisMark leads on disadvantage-gap reporting and unlimited marking for trusts. Its department and school plans cap markings each term; GradeOrbit seats have no cap and include AI detection.
About AegisMark
AegisMark is a UK AI marking platform focused on closing the disadvantage gap, sold per department, school or trust. It names GCSE English, Geography, History and RS, and says other subjects can be added with their mark scheme.
What one script costs
One student’s script at four lengths, from a short quiz to a long mock booklet.
| Tool | 2 pages | 6 pages | 24 pages | 40 pages |
|---|---|---|---|---|
| GradeOrbit | Included in the seat | Included in the seat | Included in the seat | Included in the seat |
| AegisMark | 33p–£1 | 33p–£1 | 33p–£1 | 33p–£1 |
GradeOrbit
Individual plans from £5 to £25 a month, for 30 to 180 credits. 1 credit marks one student’s script, whatever its length. Schools pay £10 per teacher a month, billed annually, with unlimited marking and AI detection on every seat.
1 credit per script costs 13.9p–16.7p on a monthly plan used in full, or 20p if you go over your allowance. School seats have no per-script charge.
AegisMark
£1,500 a year for one department (up to 500 markings a term), £3,000 a year for a whole school (up to 3,000 a term), or £2,500 per school a year across a trust (unlimited).
Per marking, with the whole-school or department cap used in full. AegisMark does not say whether a long script counts as one marking.
What a department pays
A year for one department of 10 teachers and 200 students, at each tool’s published prices.
| GradeOrbit | £1,200 a year for 10 teacher seats, with unlimited marking and AI detection |
|---|---|
| AegisMark | £1,500 a year (Department, up to 500 markings a term) |
Published accuracy
Studies differ in subject, exam board, sample size and who ran them, so read the figures side by side rather than as a ranking.
GradeOrbit
- GCSE Maths (Pearson Edexcel): 96% of marks within 1 mark of the senior examiner, agreement score (QWK) 0.92, across 69 marks.
- GCSE English (Eduqas): 83% of marks within 1 mark of the senior examiner, agreement score (QWK) 0.96, across 98 marks.
Measured 18 October 2026 on exam board exemplar scripts. We ran the study ourselves; the method and limits are on our accuracy page.
AegisMark
We found no accuracy figures on AegisMark’s homepage or pricing page. It describes its method: vision models scoring against exam board Assessment Objectives, with teachers reviewing marks before release.
Side by side
| GradeOrbit | AegisMark | |
|---|---|---|
| How you pay | Yes: Per script: 1 credit, any length | Yes: Annual licence with termly caps |
| Pages per script | Yes: Up to 50 on individual accounts; no limit for schools | Not found: Not mentioned on its homepage or pricing page |
| Subjects | Yes: Any subject, KS3 to A-level and BTEC | Partly: Named GCSE essay subjects; others added with a mark scheme |
| Handwritten scripts | Yes: Scanned or photographed whole scripts | Yes: Says it reads handwriting directly from scans or photos |
| Mark schemes | Yes: Ready-made GCSE mark schemes, or your own criteria | Yes: AQA, Edexcel, OCR and WJEC/Eduqas |
| Published accuracy figures | Yes: Against senior examiners, GCSE Maths and GCSE English | No: None found |
| AI detection | Yes: 1 credit a check on individual plans; unlimited for schools | Not found: Not mentioned on its homepage or pricing page |
| MIS sync | Yes: Wonde, on school accounts | Partly: Wonde, on the Whole School plan |
| Student data | Yes: Individual accounts: work not kept, names redacted in your browser. Schools: kept under a DPA | Yes: Says GDPR compliant, never used for training, deleted 30 days after closure |
| Free trial | Yes: 10 free credits for teachers; 30-day trial for schools | Yes: Free trial, no card |
Where AegisMark is strong
- Reports on the disadvantage gap, using pupil premium data from Wonde.
- Unlimited marking on its trust plan.
- A free trial with an end-of-trial impact report.
Where GradeOrbit is different
- GradeOrbit seats have no termly cap on marking.
- GradeOrbit includes AI detection on every school seat.
- GradeOrbit publishes how close its marks come to senior examiners.
Which should you choose?
- AegisMark may suit you if
- Your priority is disadvantage-gap reporting, or you are a trust that wants unlimited marking across schools.
- GradeOrbit may suit you if
- You want no cap on marking, AI detection in the same seat, and published accuracy figures.
Sources
- AegisMark homepage (checked 19 October 2026)
- AegisMark pricing (checked 19 October 2026)
Everything about AegisMark on this page comes from its own public pages on the date shown, and may have changed since. We have not used AegisMark’s product. AegisMark is a trademark of its owner and is named here only to compare. Spotted something out of date? Tell us and we will correct it.
Try it on your own scripts.
Start a 30-day free trial for your school. No card needed.