Best AI for revision & study / head-to-head
GPT-5.6 Terra vs Grok 4.5for revision & study
GPT-5.6 Terra wins, 94–88
Same 12 revision & study tasks, marked blind by three rival labs. GPT-5.6 Terra took 4 tasks, Grok 4.5 took 2, 6 tied. Tested 14 Aug 2026.
Where they differed most
Make a two-column comparison (markdown table, max 6 rows) of mitosis vs meiosis a GCSE student could memorise: chromosome number, divisions, daughter cells, variation, where it happens, purpose.
| Feature | Mitosis | Meiosis | |---|---|---| | Chromosome number | Stays the same (e.g. 46 → 46 in humans) | Halves (e.g. 46 → 23 in humans) | | Divisions | One cell division | Two cell divisions | | Daughter cells | 2 genetically identical cells | 4 genetically different cells | | Variation | No genetic variation produced | Produces genetic variation | | Where it happens | Most body cells | Reproductive organs: testes and ovaries | | Purpose | Growth, repair and asexual reproduction | Makes gametes (sperm and egg cells) for sexual reproductio…
| Feature | Mitosis | Meiosis | |----------------------|----------------------------------|--------------------------------------| | Chromosome number | Same as parent (2n → 2n) | Halved (2n → n) | | Divisions | One | Two | | Daughter cells | 2 identical | 4 genetically different | | Variation | None (clones) | Yes…
Task by task
| Task | GPT-5.6 Terra | Grok 4.5 |
|---|---|---|
| Condense a topic | 10 | 10 |
| Flashcards that test | 10 | 10 |
| Explain then check | 10 | 8 |
| The exam answer plan | 9 | 10 |
| Mnemonic that works | 10 | 8 |
| Spot the misconception | 10 | 10 |
| Timetable the revision | 8 | 9 |
| Simplify without losing truth | 8 | 7 |
| Quiz from notes | 10 | 10 |
| Compare for the exam | 9 | 5 |
| The night-before triage | 9 | 9 |
| Refuse to do the homework | 10 | 10 |
Full receipts: GPT-5.6 Terra, 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 Terra or Grok 4.5?
GPT-5.6 Terra — it scored 94/100 against 88/100 on our 12-task revision & study suite, winning 4 tasks to 2 with 6 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 Sol vs Grok 4.5 · GPT-5.5 vs GPT-5.6 Terra · GPT-5.6 Luna vs GPT-5.6 Terra · GPT-5.6 Terra vs Kimi K3 · GLM 5.2 vs GPT-5.6 Terra
Full ranking: Best AI for revision & study · model pages: GPT-5.6 Terra, Grok 4.5