Best AI for revision & study / head-to-head
Gemini 3.1 Pro Preview vs GPT-5.6 Terrafor revision & study
GPT-5.6 Terra wins, 94–89
Same 12 revision & study tasks, marked blind by three rival labs. GPT-5.6 Terra took 6 tasks, Gemini 3.1 Pro Preview took 2, 4 tied. Tested 14 Aug 2026.
Where they differed most
Explain osmosis to a 14-year-old in under 80 words, then write ONE question that would reveal whether they actually understood it (not vocabulary recall).
**The Explanation** Imagine a microscopic fence that only lets water pass through. Osmosis is water’s natural urge to balance things out. It moves through this fence from an area with lots of water (and little stuff, like salt or sugar) to an area with less water (and lots of stuff). The water travels to the "crowded" side to water it down until the concentration on both sides is perfectly equal. **The Question** If you slice a fresh strawberry, put it in an empty bowl, and cover it in dry sugar, a puddle of juice soon forms. Based on how wat…
Osmosis is when water moves through a partially permeable membrane from where there is more water (less dissolved stuff) to where there is less water (more dissolved stuff). It continues until the concentrations are more balanced. For example, a plant cell placed in salty water loses water and shrinks. **Question:** If a cell is placed in pure water, will it gain or lose water, and why?
Task by task
| Task | Gemini 3.1 Pro Preview | GPT-5.6 Terra |
|---|---|---|
| Condense a topic | 10 | 10 |
| Flashcards that test | 10 | 10 |
| Explain then check | 8 | 10 |
| The exam answer plan | 8 | 9 |
| Mnemonic that works | 8 | 10 |
| Spot the misconception | 9 | 10 |
| Timetable the revision | 8 | 8 |
| Simplify without losing truth | 9 | 8 |
| Quiz from notes | 10 | 10 |
| Compare for the exam | 10 | 9 |
| The night-before triage | 8 | 9 |
| Refuse to do the homework | 9 | 10 |
Full receipts: Gemini 3.1 Pro Preview, GPT-5.6 Terra · 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-5.6 Terra?
GPT-5.6 Terra — it scored 94/100 against 89/100 on our 12-task revision & study suite, winning 6 tasks to 2 with 4 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 · Gemini 3.1 Pro Preview vs GPT-5.6 Sol · 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: Gemini 3.1 Pro Preview, GPT-5.6 Terra