Skip to main content

Simple plans for every teacher.

1 credit marks 1 student’s script, whatever its length. Start with 10 free credits.

Against senior examiners: 96% of GCSE Maths marks within 1 mark, 97% of GCSE English marks within 2. See the accuracy results

Plans

A set allowance of marking — same detailed feedback, on a predictable plan. 1 credit still marks 1 student.

Basic

£5/month

Billed monthly

  • 30 credits per month
  • Usable across marking and lesson planning
Sign up
Most popular

Pro

£12/month

Billed monthly

  • 80 credits per month
  • Usable across marking and lesson planning
Sign up

Max

£25/month

Billed monthly

  • 180 credits per month
  • Usable across marking and lesson planning
Sign up

Plans renew automatically. Cancel anytime.

See what credits cost per feature ↓

Credit costs per operation

Clear, predictable usage. 1 credit marks 1 student paper, 2 credits generates a full lesson presentation. Transcription and planning tools are always free.

Student Marking
per student
1 credit

Any length of submission — a 20-page mock exam costs the exact same as a 2-page test.

  • Full handwriting and typed OCR transcription
  • Criteria matching against your custom or exam-board mark scheme
  • Categorised strengths, weaknesses, and targeted next steps
  • Printable and downloadable student feedback PDF
Lesson PowerPoint
per exported deck
2 credits

Complete, classroom-ready lesson presentations formatted in your school colours and fonts.

  • Up to 15 structured slides (objectives, starters, tasks, plenary)
  • Teacher speaker notes and scaffolding included
  • Theme matching from your reference PowerPoint
  • Downloadable as editable PowerPoint (.pptx)
Teaching Assistant
0 credits
Always Free

Interactive follow-up dialogue and feedback refinement on any marked student work.

  • Ask clarifying questions about grading decisions
  • Tailor feedback tone for individual student needs
  • Unlimited follow-up prompts on marked submissions
Transcription & OCR
0 credits
Always Free

Automated text extraction and image preparation before grading begins.

  • High-accuracy transcription of handwritten student work
  • AI formatting cleanup and grading rubric detection
  • Multi-page PDF and image upload processing
Scheme of Work Outlines
0 credits
Always Free

Curriculum mapping and sequencing across terms and year groups.

  • Multi-week learning sequence and unit generation
  • Curriculum alignment and learning arc breakdowns
  • Editable lesson outlines and learning objectives

How credits work

1 credit marks 1 student paper · 2 credits generates a complete lesson PowerPoint presentation. Top-up credits never expire, and new teacher accounts start with 10 free credits. Optional overage protection is available at 20p per credit with a monthly limit you control.

Try 10 free credits

Frequently asked questions

Credits are deducted when you use the AI features. Marking costs 1 credit per student. Transcription and format detection are always free.
You can switch on overage and keep going. Each extra paper costs a flat 20p, added up and billed on the 1st of the month. You set a monthly limit when you turn it on — £10 by default — and marking stops when you reach it, so we never bill you above that limit. Overage is off unless you turn it on.
If the AI fails to process your request due to a technical error, your credits are automatically refunded. You'll see the refund in your credit history with a note explaining what happened.
Your free signup credits never expire — use them whenever you need them. A subscription plan’s allowance resets each billing cycle, so any unused allowance doesn’t carry over to the next one — but it never touches your free credits.
Yes — switch tier or billing cycle any time. Choose Switch now to change immediately (you pay the prorated difference and get the new plan’s marks straight away), or at your next renewal (nothing changes or is charged until then, and you can cancel the scheduled switch any time before it happens). Moving to a yearly plan gives you the whole year’s marks the moment you switch.
We test it against exam board exemplar scripts marked by senior examiners. In GCSE Maths, 96% of the AI's marks were within 1 mark of the examiner's; in GCSE English, 97% were within 2 marks. You review and approve every mark before it counts.
See the full accuracy results
New teacher accounts start with 10 free credits. We may offer promotional credits from time to time. Follow us for updates on special offers.

Ready to get started?

Sign up now to try GradeOrbit for free. Start with 10 free credits, no credit card required.

Get Started Free