GLM-5.2 vs GPT-4o mini
Wins 5 of 5 areas
Coding · Agents · Reasoning · Facts · Following instructions
Wins 0 of 5 areas
—
GLM-5.2 is the stronger all-rounder.GPT-4o mini is cheaper.
Scores updated · 11 tests both models report · How we compare
Where each one wins
Tests won in each of the five areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
- ReasoningHard problems that need careful thinking30GLM-5.23 of 3 tests
- CodingWriting and fixing software20GLM-5.22 of 2 tests
- AgentsCarrying out multi-step tasks on its own20GLM-5.22 of 2 tests
- FactsGetting facts right instead of making them up10GLM-5.21 of 1 test
- Following instructionsDoing exactly what it is asked10GLM-5.21 of 1 test
Facts and following instructions rest on a single test each.
What it costs
Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.
GPT-4o mini costs 87% less for the same work.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where GLM-5.2 pulls ahead
- Command-line tasks in a real terminalTerminal-Bench 2.1+72.3points ahead
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+46.9points ahead
- Follows unfamiliar, precisely checkable instructionsIFBench+42.3points ahead
Where GPT-4o mini pulls ahead
No clear win on a test scored out of 100.
Every test, side by side
All 11 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGLM-5.2
- Terminal-Bench 2.1GLM-5.2 by 72.377.95.6+72.3
- SciCodeGLM-5.2 by 28.351.222.9+28.3
AgentsGLM-5.2
- GDPValGLM-5.2 by 43.743.70+43.7
- τ-Bench V3 · BankingGLM-5.2 by 31.734.62.9+31.7
ReasoningGLM-5.2
- GPQA DiamondGLM-5.2 by 46.989.542.6+46.9
- Humanity's Last ExamGLM-5.2 by 36.941.14.2+36.9
- ARC-AGI-2GLM-5.2 by 22.822.80+22.8
Other results2 tests, not counted
Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.
- Artificial Analysis Coding IndexGLM-5.2 by 57.468.811.4+57.4
- AA IntelligenceGLM-5.2 by 2733.76.7+27
Questions people ask
Which is better, GLM-5.2 or GPT-4o mini?
GLM-5.2 wins all five areas where both have results: coding, agents, reasoning, facts and following instructions. GPT-4o mini wins none, but costs 87% less.
Which is better for coding?
GLM-5.2. It wins 2 of the 2 coding tests both models report; GPT-4o mini wins none.
Which is cheaper?
GLM-5.2 costs $1.40 per million input tokens and $4.40 per million output tokens; GPT-4o mini costs $0.15 and $0.60. That makes GPT-4o mini about 87% cheaper for the same work.
How do you compare the two?
We use the 11 benchmark tests both models have published scores on. The verdict counts the 9 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 2 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.