GradeOrbit vs DeepMark
Per-pupil department plans against per-teacher seats.
Information about DeepMark checked 19 October 2026
In short
DeepMark’s department plan costs less than GradeOrbit seats for a department of this size, and includes live co-marking. GradeOrbit marks a long mock as one script, publishes accuracy against senior examiners, and syncs rosters through Wonde.
About DeepMark
DeepMark is a UK marking tool for teams of 1 to 20 teachers, with pay-as-you-go papers for individuals and a per-pupil plan for departments. It says AI is optional and teachers confirm every mark.
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 |
| DeepMark | 33p | 33p | Counts as more than one paper | Counts as more than one paper |
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.
DeepMark
20 free papers, then 33p a paper pay-as-you-go (from £5 for 15), or a department plan at £3.50 per pupil per course a year (£700 for up to 200 pupils).
Pay-as-you-go papers are up to 12 pages, and DeepMark says mocks count as more than one. The department plan is per pupil, within fair use.
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 |
|---|---|
| DeepMark | £700 a year (200 students, one course, unlimited teachers) |
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.
DeepMark
DeepMark publishes no accuracy figures for its own marking. It cites Ofqual’s figures on how often human examiners agree.
Side by side
| GradeOrbit | DeepMark | |
|---|---|---|
| How you pay | Yes: Per script: 1 credit, any length | Partly: Per paper, or per pupil for departments |
| Pages per script | Yes: Up to 50 on individual accounts; no limit for schools | Partly: Up to 12 pages a paper |
| Subjects | Yes: Any subject, KS3 to A-level and BTEC | Partly: Year 7 to 13; no subject list |
| Handwritten scripts | Yes: Scanned or photographed whole scripts | Yes: Scans or phone photos |
| Mark schemes | Yes: Ready-made GCSE mark schemes, or your own criteria | Yes: AQA, Edexcel, OCR and WJEC |
| Published accuracy figures | Yes: Against senior examiners, GCSE Maths and GCSE English | No: None for its own marking |
| 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: Exports for your MIS; no sync found |
| Student data | Yes: Individual accounts: work not kept, names redacted in your browser. Schools: kept under a DPA | Yes: Says UK hosting (AWS London), never used to train AI |
| Free trial | Yes: 10 free credits for teachers; 30-day trial for schools | Yes: 20 free papers, no expiry |
Where DeepMark is strong
- A low per-pupil department price with unlimited teachers.
- Live co-marking and moderation across a department.
- Says student data is hosted in the UK and AI is optional.
Where GradeOrbit is different
- GradeOrbit marks a whole mock as one script, without counting it as several papers.
- GradeOrbit publishes how close its marks come to senior examiners.
- GradeOrbit school accounts sync classes and pupils through Wonde, and include AI detection.
Which should you choose?
- DeepMark may suit you if
- You want the lowest department price and live co-marking, and mostly mark shorter papers.
- GradeOrbit may suit you if
- You mark long mocks, want published accuracy figures, and want rosters synced from your MIS.
Sources
- DeepMark homepage (checked 19 October 2026)
- DeepMark pricing (checked 19 October 2026)
Everything about DeepMark on this page comes from its own public pages on the date shown, and may have changed since. We have not used DeepMark’s product. DeepMark 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.
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