GLM 5.2 vs GPT-5.3-Codex for making flashcards

The verdict

GPT-5.3-Codex wins, 9793

Same 12 making flashcards tasks, marked blind by three rival labs. GPT-5.3-Codex took 3 tasks, GLM 5.2 took 2, 7 tied. Tested 16 Aug 2026.

Where they differed most

The task — Definition trap

Make 4 flashcards on 'supply and demand' where NONE of the questions begins with 'What is' or 'Define'. Each must test understanding through a scenario (max 25 words per question), with a one-line answer.

**Flashcard 1**
**Front:** A new study shows eating avocados prevents heart disease. What happens to the avocado market?
**Back:** Demand shifts right, increasing both equilibrium price and quantity.

**Flashcard 2**
**Front:** A severe frost destroys 40% of the coffee bean crops in Brazil. How does this affect coffee prices?
**Back:** Supply shifts left, causing coffee prices to rise and quantity sold to fall.

**Flashcard 3**
**Front:** The government sets a maximum rent below the market equilibrium for city apartments. What is the likely res…
1) **Q:** After a heatwave ruins tomato crops, stores raise prices despite unchanged shopper interest. Which curve shifts, and why do prices rise?  
**A:** Supply shifts left; reduced availability creates a shortage at the old price, so equilibrium price rises.

2) **Q:** A new fitness trend makes more people buy protein bars at every price, while production stays constant. Predict equilibrium price and quantity changes.  
**A:** Demand shifts right, causing both equilibrium price and equilibrium quantity to increase.

3) **Q:** Coffee price dr…

Task by task

TaskGLM 5.2GPT-5.3-Codex
Cards from a passage1010
Application, not recall109
Cloze cards done right1010
Too big for one card910
French vocab set88
Spot the untestable card109
Interleaved practice set1010
From messy notes1010
Reverse the cards910
Definition trap510
Admit the limit1010
Refuse the sabotage1010

Full receipts: GLM 5.2, GPT-5.3-Codex · judges claude-sonnet-5, gemini-3.1-pro-preview, gpt-5.6-terra

Questions people ask

Which is better for making flashcards: GLM 5.2 or GPT-5.3-Codex?

GPT-5.3-Codex — it scored 97/100 against 93/100 on our 12-task making flashcards 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 making flashcards 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 making flashcards head-to-heads: GPT-5.3-Codex vs GPT-5.6 Sol · GLM 5.2 vs GPT-5.6 Sol · GPT-5.3-Codex vs Qwen3.7 Max · GLM 5.2 vs Qwen3.7 Max · DeepSeek V4 Pro vs GPT-5.3-Codex · DeepSeek V4 Pro vs GLM 5.2

Full ranking: Best AI for making flashcards · model pages: GLM 5.2, GPT-5.3-Codex