GLM-5 vs GPT-5.2
Wins 0 of 7 areas
—
Wins 5 of 7 areas
Coding · Reasoning · Math · Long documents · Following instructions
GPT-5.2 is the stronger all-rounder.GLM-5 is cheaper.
Scores updated · 38 tests both models report · How we compare
Where each one wins
Tests won in each of the seven 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 thinking14GPT-5.24 of 5 tests
- MathCompetition and research-level math03GPT-5.23 of 3 tests
- CodingWriting and fixing software23GPT-5.23 of 5 tests
- Long documentsFinding answers in very long texts01GPT-5.21 of 1 test
- Following instructionsDoing exactly what it is asked01GPT-5.21 of 1 test
- AgentsCarrying out multi-step tasks on its own22Even2 each
- FactsGetting facts right instead of making them up11Even1 each · 1 tie
Long documents 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.
GLM-5 costs 73% less for the same work.
The biggest differences
The three tests each model wins by the widest margin. Scores are out of 100.
Where GPT-5.2 pulls ahead
- Abstract visual puzzles that people can solveARC-AGI-2+48points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+18points ahead
- Harvard-MIT high-school math contest problemsHMMT Feb. 2026+14.2points ahead
Where GLM-5 pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+45.9points ahead
- Long, multi-file coding tasks in real codebasesSWE-bench Pro+25.2points ahead
- Finds hard-to-locate facts by browsing the webBrowseComp+10.1points ahead
Every test, side by side
All 38 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGPT-5.2
- SWE-bench ProGLM-5 by 25.255.129.9+25.2
- SciCodeGPT-5.2 by 5.946.252.1+5.9
- Terminal-Bench HardGPT-5.2 by 3.843.247+3.8
- SWE-bench VerifiedGPT-5.2 by 2.277.880+2.2
- LMArena · WebDevGLM-5 by 18 rating points14341416+18 rating
AgentsEven
- BrowseCompGLM-5 by 10.175.965.8+10.1
- AA ApexAgentsGPT-5.2 by 8.514.523+8.5
- MCP AtlasGLM-5 by 7.267.860.6+7.2
- GDPValGPT-5.2 by 3.744.648.3+3.7
ReasoningGPT-5.2
- ARC-AGI-2GPT-5.2 by 484.952.9+48
- CritPtGPT-5.2 by 9.6211.6+9.6
- Humanity's Last ExamGPT-5.2 by 8.429.337.7+8.4
- GPQA DiamondGPT-5.2 by 8.38290.3+8.3
- SimpleBenchGLM-5 by 7.453.245.8+7.4
FactsEven
- AA-Omniscience · Non-hallucinationGLM-5 by 45.964.718.8+45.9
- AA-Omniscience · AccuracyGPT-5.2 by 1826.344.3+18
- Vectara HHEM hallucination ratelower is bettertie10.110.8tie
MathGPT-5.2
- HMMT Feb. 2026GPT-5.2 by 14.282.897+14.2
- IMOAnswerBenchGPT-5.2 by 3.882.586.3+3.8
- AIME 2026GPT-5.2 by 2.995.498.3+2.9
Other results16 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.
- ARC-AGI-1GPT-5.2 by 41.544.786.2+41.5
- frontiermath_tier_4_v1GPT-5.2 by 16.72.118.8+16.7
- τ²-Bench Telecom (AA run)GLM-5 by 13.498.284.8+13.4
- vectara_avg_summary_lengthGPT-5.2 by 111.9 rating points74.4186.3+111.9 rating
- HLE (with tools)GLM-5 by 4.950.445.5+4.9
- Artificial Analysis Coding IndexGPT-5.2 by 4.544.248.7+4.5
- τ²-BenchGLM-5 by 4.289.785.5+4.2
- swe_bench_bashGLM-5 by 3.872.869+3.8
- AIME 2025GPT-5.2 by 3.396.7100+3.3
- AA Agentic IndexGLM-5 by 2.963.160.2+2.9
- AA IntelligenceGPT-5.2 by 2.527.930.4+2.5
- Terminal-Bench 2.0GLM-5 by 2.256.254+2.2
- AA-OmniscienceGLM-5 by 1.20.3-0.9+1.2
- HMMT Nov. 2025GLM-5 by 1.196.995.8+1.1
- vectara_factual_consistencytie89.989.2tie
- vectara_answer_ratetie99.7100tie
Questions people ask
Which is better, GLM-5 or GPT-5.2?
GPT-5.2 wins five of the seven areas where both have results: coding, reasoning, math, long documents and following instructions. GLM-5 wins none, but costs 73% less. They are level on agents and facts.
Which is better for coding?
GPT-5.2. It wins 3 of the 5 coding tests both models report; GLM-5 wins 2.
Which is cheaper?
GLM-5 costs $1.00 per million input tokens and $3.20 per million output tokens; GPT-5.2 costs $1.75 and $14.00. That makes GLM-5 about 73% cheaper for the same work.
How do you compare the two?
We use the 38 benchmark tests both models have published scores on. The verdict counts the 22 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 16 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.