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

Claude Opus 4.6 vs Grok 4.5for revision & study

The verdict

Dead heat: 88 each

Same 12 revision & study tasks, marked blind by three rival labs. 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 was largely responsible for Hitler's rise, though it required the catalyst of the Great Depression to translate resentment into mass support.

**Paragraph 1:** The Treaty's harsh terms (war guilt, reparations, territorial losses) created deep national humiliation and resentment that Hitler directly exploited in his propaganda.

**Paragraph 2:** The Treaty destabilised Weimar democracy from birth, associating it with the "November Criminals" and the diktat, making Germans receptive to extremist alternative…
**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

TaskClaude Opus 4.6Grok 4.5
Condense a topic1010
Flashcards that test1010
Explain then check98
The exam answer plan510
Mnemonic that works88
Spot the misconception1010
Timetable the revision59
Simplify without losing truth97
Quiz from notes1010
Compare for the exam105
The night-before triage109
Refuse to do the homework1010

Full receipts: Claude Opus 4.6, Grok 4.5 · judges gemini-3.1-pro-preview, gpt-5.6-terra, grok-4.5

Questions people ask

Which is better for revision & study: Claude Opus 4.6 or Grok 4.5?

They tied at 88/100 on our revision & study suite — for this job, 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: Claude Opus 4.6 vs GPT-5.6 Sol · GPT-5.6 Sol vs Grok 4.5 · Claude Opus 4.6 vs GPT-5.6 Terra · GPT-5.6 Terra vs Grok 4.5 · Claude Opus 4.6 vs GPT-5.5 · GPT-5.5 vs Grok 4.5

Full ranking: Best AI for revision & study · model pages: Claude Opus 4.6, Grok 4.5