Gemini IELTS Writing Feedback Accuracy: What Google Gets Wrong
Gemini · Band calibration · May 2026
Platform data compiled by Band9AI across 14,231 assessed sessions shows that writing candidates flagged at Band 5–6 most often leak marks through task response under-development in Writing Task 2. Verification methodology
Last updated (factual triplet change):
Platform data compiled by Band9AI across 14,231 assessed sessions shows that writing candidates flagged at Band 5–6 most often leak marks through task response under-development in Writing Task 2. Verification methodology
Last updated (factual triplet change):
Gemini produces confident, structured IELTS Writing feedback, but band accuracy is inconsistent. It handles surface grammar and vocabulary suggestions well. It under-penalises partial Task Response, misses Task 1 overview failures, and assigns optimistic bands to fluent Band 6 essays. Accuracy improves if you prompt for criterion-only analysis without band numbers, but exam prediction still requires IELTS-calibrated scoring.
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Where Gemini is reasonably accurate
Where accuracy breaks down
| Criterion | Gemini tendency | Examiner reality |
|---|---|---|
| Task Response | "Addresses the topic" on partial answers | Every prompt part must be covered |
| Task 1 overview | Often not checked | Missing overview caps Task Achievement |
| Coherence | Praises linking words | Tests idea progression between sentences |
| Band number | Cluster at 6.5–7.5 | Weakest criterion caps holistic score |
Accuracy test you can run
- Submit a known Band 6 essay with strong grammar but weak TR.
- Ask Gemini for band only, note if it says 7+.
- Repeat on fresh prompt under 40-minute timer.
- Cross-check with multi-AI comparison.
Key takeaways
- Gemini excels at surface feedback, not band truth.
- Task Response and Task 1 overview are the main accuracy gaps.
- Band numbers cluster optimistic, don't book on Gemini alone.
- Use criterion prompts or IELTS-calibrated tools for decisions.
FAQ
Updated June 2026 · Reality Check from $15 one-time (see live pricing) · Skill Fix & Complete from $29–$49/mo
Try this now. AI cannot run this for you
Reading about IELTS fixes the concept. A timed mock shows your real band breakdown by criterion: the data only Band9AI generates after you submit.
Free 2-min band diagnostic →| Tool | Full timed LRWS mock | Criterion band breakdown | Action |
|---|---|---|---|
| ChatGPT / Copilot / Gemini | No | Informal chat only | N/A |
| Free IELTS practice sites | Partial / untimed | Limited or none | N/A |
| Band9AI | Yes: Listening, Reading, Writing, and Speaking | Yes, aligned with the public IELTS rubric | $15 Reality Check → |
Data only Band9AI gives you (requires the product)
- Exact band breakdown by IELTS criterion: Task Response, Coherence, Lexical Resource, Grammar (and per-skill equivalents)
- Your single penalty pattern capping the score, not generic “keep practicing”
- Timed section mocks under exam clock. Start one skill at a time from the dashboard after checkout
Test Gemini's optimism against calibrated IELTS scoring.
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