Your Essay Marking Partner for Early Diagnosis
GCSE and A-level assessment that reveals what's limiting performance — early enough to act.
Over 300,000 essays assessed
See how Tilf diagnoses an essay
Curriculum-aligned feedback, inline comments, and diagnostic insight in seconds.
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Explore the interactive demo
Walk through a fully marked essay and explore the diagnostic breakdown.
View interactive demo →Opens in a new tab
Drive progress all year.
From draft to mock, Tilf surfaces exam performance gaps early — when it matters most.
Evidence You Can Stand Behind
Mark with confidence — with clear evidence behind every score.
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Stay Consistent Across Every Script
From the first script to the last, make clear, steady judgements you can trust.
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Next Steps You Can Act On
Turn feedback into clear teaching priorities that move performance.
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Don't just set the mark. Change it while there's still time.
Less time second-guessing. More time acting on what matters.
Designed for essay-based subjects across major UK exam boards, including AQA, OCR, and Edexcel.
See exactly how each assessment objective performs, with paragraph-level feedback across the script — not just a final score.
Understand why a script sits in a band, with visible evidence aligned to exam criteria.
Mark full exam papers or individual questions with structured, exam-aligned reasoning.
Identify patterns, performance gaps, and teaching priorities across a class or department.
Adjust marks, refine feedback, and make the final decision on every script.
Trusted by teachers who care about what happens after the mark.
In their own words.
I tested Tilf.io with AQA Literature. The advice it gives is better than that given by the senior examiner.
Mr. Dominic Sales — Head of English
Head of English
I can spot gaps across the whole class now and intervene early, before those gaps turn into bad exam results.
Teacher — English Department
English Department
Now when Ofsted came in to the school and said ‘how are you using AI’ and we could show them ‘look at this child’s progress since we started’.
Teacher — English Department
English Department
Before the program, I’d mark and one child would suffer because I’d been marking for so long, because of the cognitive overload and I’d have to go back because I’d feel so badly.
Teacher — Secondary English
Secondary English
We usually give our students only 1 paper for the mocks because we don’t have time to mark more. This year for the first time we could give them all 4 papers across lit and lang.
Teacher — Secondary English
Secondary English
It’s made me a much better marker.
Teacher — English Department
English Department
Stay in control with a tool that works the way you do
Turn hundreds of essays into feedback students can use -- in hours, not weeks.
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Built for every role in the department
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Invest in marks that move.
Every plan delivers insight beyond the score — scaled from individual use to full department alignment.
£8/ month
Billed annually
For one teacher marking a single class.
- 80 evaluations / month
- Paragraph-level & AO breakdown
- Clear band justification & editable feedback
- Top-up evaluations available anytime
£14/ month
Billed annually
Best for one teacher across multiple classes.
- 250 evaluations / month
- Batch marking & whole-paper assessment
- Class insight reports
- Top-up evaluations available anytime
£34/ month
Billed annually
Best for multiple teachers with shared oversight.
- 750 evaluations / month
- Unlimited teacher accounts
- Department & cohort analytics
- Complimentary student practice accounts
Top-up evaluations available anytime to match marking peaks.
Privacy and trust first
Your students' data is safe with TILF. We take privacy seriously so you can focus on what matters -- helping students improve.
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Frequently asked questions
Clear answers before you get started.
Still have questions?
Email us at accounts@tilf.io or explore our full FAQ →
More insight. More often. More progress.
Diagnose essays in depth, earlier in the learning cycle -- so teachers and students have more time to act on it.
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