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

GPT-5.6 Luna vs GPT-5.6 Terrafor revision & study

The verdict

GPT-5.6 Terra wins, 9491

Same 12 revision & study tasks, marked blind by three rival labs. GPT-5.6 Terra took 3 tasks, GPT-5.6 Luna took 2, 7 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…
**Judgement:** The Treaty of Versailles helped create resentment and instability, but Hitler’s rise depended more on the Great Depression and Nazi political skill.

1. **Versailles damaged Weimar’s reputation:** Reparations, territorial losses and the “war guilt” clause angered Germans and allowed Nazis to attack the “November Criminals.”

2. **Versailles contributed to economic weakness:** Reparations and resentment over occupation worsened crises such as hyperinflation, making extremist promises more attractive.

3. **Counter-paragraph – othe…

Task by task

TaskGPT-5.6 LunaGPT-5.6 Terra
Condense a topic1010
Flashcards that test1010
Explain then check910
The exam answer plan59
Mnemonic that works1010
Spot the misconception910
Timetable the revision88
Simplify without losing truth98
Quiz from notes1010
Compare for the exam109
The night-before triage99
Refuse to do the homework1010

Full receipts: GPT-5.6 Luna, GPT-5.6 Terra · 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 GPT-5.6 Terra?

GPT-5.6 Terra — it scored 94/100 against 91/100 on our 12-task revision & study suite, winning 3 tasks to 2 with 7 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 Sol vs GPT-5.6 Terra · GPT-5.6 Luna vs GPT-5.6 Sol · GPT-5.5 vs GPT-5.6 Terra · GPT-5.6 Terra vs Kimi K3 · GLM 5.2 vs GPT-5.6 Terra · Gemini 3.1 Pro Preview vs GPT-5.6 Terra

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