Best AI for revision & study / head-to-head

GPT-5.6 Luna vs Grok 4.5for revision & study

The verdict

GPT-5.6 Luna wins, 9188

Same 12 revision & study tasks, marked blind by three rival labs. GPT-5.6 Luna took 4 tasks, Grok 4.5 took 3, 5 tied. Tested 14 Aug 2026.

Where they differed most

The task — The exam answer plan

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 helped Hitler rise by creating anger and resentment, but the Depression and weaknesses of Weimar democracy were more important.

- **Paragraph 1 – Treaty:** Reparations, territorial losses, military restrictions and the “war guilt” clause humiliated Germany, allowing Hitler to promise revenge and revision.
- **Paragraph 2 – Counter-factor:** The Great Depression caused mass unemployment and poverty, making voters abandon moderate parties for Hitler’s extreme promises.
- **Paragraph 3 – Counter-factor:** W…
**Plan:**

**Judgement:** The Treaty of Versailles was partly responsible for Hitler’s rise, but other factors were more decisive.

**Paragraph topics:**
1. TOV’s harsh terms (reparations, war guilt, territorial losses) fuelled German resentment Hitler exploited.
2. Economic crises (hyperinflation, Depression) created desperation enabling Nazi gains.
3. Political weakness (Weimar instability, elite miscalculations) allowed Hitler’s appointment.

**Counter-paragraph concedes:** TOV created lasting grievances and propaganda opportunities that aid…

Task by task

TaskGPT-5.6 LunaGrok 4.5
Condense a topic1010
Flashcards that test1010
Explain then check98
The exam answer plan510
Mnemonic that works108
Spot the misconception910
Timetable the revision89
Simplify without losing truth97
Quiz from notes1010
Compare for the exam105
The night-before triage99
Refuse to do the homework1010

Full receipts: GPT-5.6 Luna, Grok 4.5 · judges claude-sonnet-5, gemini-3.1-pro-preview, grok-4.5

Questions people ask

Which is better for revision & study: GPT-5.6 Luna or Grok 4.5?

GPT-5.6 Luna — it scored 91/100 against 88/100 on our 12-task revision & study suite, winning 4 tasks to 3 with 5 tied. Every answer was marked blind by three judges from three rival AI labs.

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: GPT-5.6 Luna vs GPT-5.6 Sol · GPT-5.6 Sol vs Grok 4.5 · GPT-5.6 Luna vs GPT-5.6 Terra · GPT-5.6 Terra vs Grok 4.5 · GPT-5.5 vs GPT-5.6 Luna · GPT-5.5 vs Grok 4.5

Full ranking: Best AI for revision & study · model pages: GPT-5.6 Luna, Grok 4.5