C1 Advanced · Full mock exams

Writing.

Write your answer, then get instant, examiner-style feedback on the four official Cambridge scales — marked to the C1 standard, with specific tips and a model answer.

20 tests
2 tasks · 90 min each
Marked by Felix on the four Cambridge scales

All papers Practise one task type at a time How the marking works Look inside — see the exercises marked

Marked by Felix, our Cambridge writing examiner

Felix isn’t a generic chatbot. He’s a purpose-built examiner, calibrated to the four official Cambridge assessment scales and the tougher C1 Advanced standard. You get a real band, your answer marked sentence by sentence, and the precise fixes that lift your score — graded the same rigorous way every single time.

Official Cambridge scales
Real band estimate
Marked sentence by sentence
Calibrated to B2 & C1

Paste your essay into ChatGPT or Gemini and you’ll get a friendly opinion. With Felix you get an exam result you can trust — and know exactly how to improve it.