Writing is the skill where IELTS candidates most often get stuck. Many reach Band 6 and stay there for months, because they keep writing essays but never find out exactly what is wrong with them.
AI writing feedback fixes that. Within a minute of submitting an essay you can get an estimated band score, a score for each criterion, and specific corrections. This guide explains how AI marks IELTS writing, how to use the feedback to improve, and what its limits are.
How IELTS Writing is marked
The Writing test takes 60 minutes and has two tasks:
- Task 1 (about 20 minutes, at least 150 words): In the Academic test you describe a chart, graph, table, map or process. In General Training you write a letter.
- Task 2 (about 40 minutes, at least 250 words): An essay giving your opinion, discussing two views, or analysing a problem. Task 2 counts for twice as much as Task 1.
Both tasks are marked on four equally weighted criteria:
- Task Achievement / Task Response: Did you answer every part of the question, with a clear position and developed ideas?
- Coherence and Cohesion: Is your writing logically organised, with clear paragraphs and natural linking?
- Lexical Resource: Do you use a range of accurate vocabulary?
- Grammatical Range and Accuracy: Do you use a mix of sentence structures with few errors?
What AI writing feedback does well
It marks you against the real criteria
Good AI feedback scores each of the four criteria separately. That is the most useful thing it can tell you, because your overall band only rises when your weakest criterion rises.
It finds the errors you cannot see
Everyone has blind spots: articles, verb tenses, subject-verb agreement, or a favourite word used five times in one essay. AI catches these consistently, essay after essay, so you can see which ones you keep repeating.
It is instant
Feedback you get a week later is feedback you have mostly forgotten the context for. Instant feedback lets you fix an essay while the ideas are still fresh.
The write, review, rewrite method
Submitting essay after essay is not enough. Use this cycle instead:
- Write under real conditions. 40 minutes for Task 2, no dictionary, no grammar checker. Otherwise the feedback measures your tools, not you.
- Read every criterion score. Find your lowest one. That is your focus for this essay.
- Rewrite one paragraph. Fix only what the feedback says about your weakest criterion. Rewriting a single paragraph well teaches more than skimming a whole essay.
- Keep a mistakes list. Write down every error you made more than once. Read the list before your next essay.
- Submit the rewritten essay. Check that the criterion you worked on improved.
Quick wins for each criterion
Task Response
Underline every part of the question before you write. Many essays lose marks simply because they answer only half of it. State your position clearly in the introduction and keep it the same until the conclusion.
Coherence and Cohesion
Give each body paragraph one main idea, introduced in its first sentence. Use linking words where they help the reader, not at the start of every sentence. Overusing “Moreover” and “Furthermore” can lower this score.
Lexical Resource
Paraphrase the question in your introduction instead of copying it. Learn collocations, words that naturally go together, such as “pose a threat” or “a significant increase”, rather than rare single words.
Grammatical Range and Accuracy
Aim for a mix: some simple sentences, some complex ones with clauses such as “although”, “which” and “if”. Accuracy matters as much as range, so it is better to write a correct complex sentence than an ambitious broken one.
The limits of AI writing feedback
- Scores are estimates. Only certified examiners give official IELTS bands. Use AI scores to track your direction and find weaknesses.
- Do not let AI write for you. Asking AI to rewrite your essay and then memorising the result will not help on test day. Use the feedback to fix your own writing.
- Memorised templates are risky. Examiners recognise memorised phrases and they do not earn credit. Learn structures, not scripts.
Combine writing with speaking practice
Writing and speaking share three of their four criteria, so the vocabulary and grammar you work on in one help the other. See our guide to IELTS speaking practice with AI, or follow the complete IELTS preparation plan with AI.
Get instant AI feedback on your IELTS writing
IELTSify with AI marks your IELTS writing against the official criteria and gives you an estimated band score with detailed feedback in about a minute. Its AI tutor then helps you fix your weakest criterion.
Download IELTSify with AI free on iPhone or Android:
