Best AI for revision & study / head-to-head
Gemini 3.1 Pro Preview vs GPT-5.3-Codex for revision & study
Effectively a dead heat: 89–88
Same 12 revision & study tasks, marked blind by three rival labs. Gemini 3.1 Pro Preview took 4 tasks, GPT-5.3-Codex took 4, 4 tied. Tested 14 Aug 2026.
Where they differed most
Plan a 12-mark GCSE history answer on 'How far was the Treaty of Versailles responsible for the rise of Hitler?' Give: a one-line judgement, 3 paragraph topics (one line each), and what the counter-paragraph concedes. No essay, just the plan, under 120 words.
**Judgement:** The Treaty of Versailles was a crucial underlying factor, but the 1929 Great Depression was ultimately more responsible for Hitler's rise. **Paragraph 1:** The Treaty of Versailles created deep-seated resentment and early economic instability that Hitler exploited through nationalist rhetoric. **Paragraph 2:** The 1929 Great Depression was the immediate trigger that radicalized desperate voters and transformed the Nazis into a mass party. **Paragraph 3:** The inherent weaknesses of the Weimar Republic and the political miscalc…
**Judgement:** The Treaty of Versailles was an important long-term cause, but Hitler rose mainly because the Great Depression and Weimar political weakness created the immediate conditions for Nazi success. **Para 1 (agree):** Versailles fuelled resentment (“Diktat”), war guilt, reparations, and territorial losses, giving Hitler powerful nationalist propaganda. **Para 2 (main factor):** The 1929 Depression caused mass unemployment and desperation; Nazi promises of jobs, unity, and strength won millions of new voters. **Para 3 (other factor):…
Task by task
| Task | Gemini 3.1 Pro Preview | GPT-5.3-Codex |
|---|---|---|
| Condense a topic | 10 | 9 |
| Flashcards that test | 10 | 10 |
| Explain then check | 8 | 9 |
| The exam answer plan | 8 | 5 |
| Mnemonic that works | 8 | 10 |
| Spot the misconception | 9 | 10 |
| Timetable the revision | 8 | 8 |
| Simplify without losing truth | 9 | 9 |
| Quiz from notes | 10 | 9 |
| Compare for the exam | 10 | 9 |
| The night-before triage | 8 | 8 |
| Refuse to do the homework | 9 | 10 |
Full receipts: Gemini 3.1 Pro Preview, GPT-5.3-Codex · judges claude-sonnet-5, gpt-5.6-terra, grok-4.5
Questions people ask
Which is better for revision & study: Gemini 3.1 Pro Preview or GPT-5.3-Codex?
Effectively a dead heat: Gemini 3.1 Pro Preview edged it 89/100 to 88/100 on our revision & study suite — too close to matter, so pick on price or the product you already use.
How was this tested?
Both models answered the identical published revision & study tasks. Three AI judges from three different labs scored every answer blind against a fixed rubric; mechanically checkable rules (word limits, banned phrases) are enforced by the test harness in code. The raw outputs and judge verdicts are downloadable.
More revision & study head-to-heads: Gemini 3.1 Pro Preview vs GPT-5.6 Sol · GPT-5.3-Codex vs GPT-5.6 Sol · Gemini 3.1 Pro Preview vs GPT-5.6 Terra · GPT-5.3-Codex vs GPT-5.6 Terra · Gemini 3.1 Pro Preview vs GPT-5.5 · GPT-5.3-Codex vs GPT-5.5
Full ranking: Best AI for revision & study · model pages: Gemini 3.1 Pro Preview, GPT-5.3-Codex