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Compare AI marking tools for UK schools

GradeOrbit side by side with other AI marking tools: what each costs per script, how long a script can be, published accuracy and how pupils’ work is handled. Every claim about another tool links to where it says so.

What to check in any AI marking tool

Five questions that separate tools quickly, whichever ones you are looking at.

Accuracy evidence
Has the tool been checked against real examiners’ marks? Who ran the study, on which subjects, and how many marks?
What you pay for
Per page, per answer, per pupil or per script. A per-page price looks cheap until you mark a 24-page mock.
Long scripts
Can you upload a whole mock as one script, or is there a page limit per upload?
Your exam boards
Does it mark against UK exam board mark schemes, and can you add your own criteria?
Student data
Where is pupils’ work kept, is there a DPA for schools, and is the work used to train AI models?

Our own figures, method and limits are on the accuracy page.

Try it on your own scripts.

10 free credits for teachers, or a 30-day free trial for your school. No card needed.