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

Gemini 3.1 Pro Preview vs GPT-5.6 Terrafor revision & study

The verdict

GPT-5.6 Terra wins, 9489

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

The task — Explain then check

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

TaskGemini 3.1 Pro PreviewGPT-5.6 Terra
Condense a topic1010
Flashcards that test1010
Explain then check810
The exam answer plan89
Mnemonic that works810
Spot the misconception910
Timetable the revision88
Simplify without losing truth98
Quiz from notes1010
Compare for the exam109
The night-before triage89
Refuse to do the homework910

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