GLM-5.2 vs GPT-5.4
Wins 1 of 7 areas
Agents
Wins 5 of 7 areas
Reasoning · Facts · Math · Long documents · Following instructions
GPT-5.4 is the stronger all-rounder.GLM-5.2 is cheaper and better at agents.
Scores updated · 46 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 thinking05GPT-5.45 of 5 tests
- MathCompetition and research-level math04GPT-5.44 of 6 tests · 2 ties
- FactsGetting facts right instead of making them up12GPT-5.42 of 3 tests
- Following instructionsDoing exactly what it is asked01GPT-5.41 of 2 tests · 1 tie
- Long documentsFinding answers in very long texts01GPT-5.41 of 1 test
- AgentsCarrying out multi-step tasks on its own31GLM-5.23 of 5 tests · 1 tie
- CodingWriting and fixing software33Even3 each · 1 tie
Long documents rests on a single test.
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-5.2 costs 67% 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-5.4 pulls ahead
- Abstract visual puzzles that people can solveARC-AGI-2+50.5points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+26.6points ahead
- Extremely hard research-level math problemsFrontierMath Tier 4+19.7points ahead
Where GLM-5.2 pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+65.4points ahead
- Multi-step tasks using many real software toolsMCP Atlas+9.6points ahead
- Finds the root cause of IT system incidentsAA IT-Bench SRE+8.2points ahead
Every test, side by side
All 46 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingEven
- LMArena · WebDevGLM-5.2 by 138 rating points16031465+138 rating
- Terminal-Bench HardGPT-5.4 by 6.850.857.6+6.8
- SciCodeGPT-5.4 by 5.451.256.6+5.4
- SWE-bench ProGLM-5.2 by 4.462.157.7+4.4
- LiveBench · CodingGLM-5.2 by 2.279.777.5+2.2
- LiveBench · Agentic CodingGPT-5.4 by 251.853.8+2
- Terminal-Bench 2.1tie77.978.3tie
AgentsGLM-5.2
- MCP AtlasGLM-5.2 by 9.676.867.2+9.6
- AA IT-Bench SREGLM-5.2 by 8.242.734.5+8.2
- GDPValGLM-5.2 by 6.343.737.4+6.3
- τ-Bench V3 · BankingGPT-5.4 by 534.639.6+5
- AA ApexAgentstie33.733.3tie
ReasoningGPT-5.4
- ARC-AGI-2GPT-5.4 by 50.522.873.3+50.5
- LiveBench · ReasoningGPT-5.4 by 9.578.688.1+9.5
- Humanity's Last ExamGPT-5.4 by 2.641.143.7+2.6
- CritPtGPT-5.4 by 2.520.923.4+2.5
- GPQA DiamondGPT-5.4 by 2.589.592+2.5
FactsGPT-5.4
- AA-Omniscience · Non-hallucinationGLM-5.2 by 65.473.78.3+65.4
- AA-Omniscience · AccuracyGPT-5.4 by 26.624.350.9+26.6
- SimpleQA VerifiedGPT-5.4 by 10.934.245.1+10.9
MathGPT-5.4
- FrontierMath Tier 4GPT-5.4 by 19.729.349+19.7
- FrontierMath Tiers 1-3 (v2)GPT-5.4 by 19.459.278.6+19.4
- HMMT Feb. 2026GPT-5.4 by 5.292.597.7+5.2
- LiveBench · MathematicsGPT-5.4 by 4.489.894.2+4.4
- IMOAnswerBenchtie9191.4tie
- AIME 2026tie99.299.2tie
Following instructionsGPT-5.4
- LiveBench · Instruction FollowingGPT-5.4 by 7.962.370.2+7.9
- IFBenchtie73.373.9tie
Other results17 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.
- HiL-Bench (Tools-allowed)GLM-5.2 by 3443.79.7+34
- ARC-AGI-1GPT-5.4 by 16.77793.7+16.7
- τ²-Bench Telecom (AA run)GLM-5.2 by 1299.187.1+12
- CyberGymGLM-5.2 by 10.977.266.3+10.9
- OfficeQA ProGPT-5.4 by 9.741.451.1+9.7
- DeepSWE 1.1GPT-5.4 by 84452+8
- NL2RepoGLM-5.2 by 7.648.941.3+7.6
- livebench_languageGPT-5.4 by 6.476.282.6+6.4
- Tool-DecathlonGPT-5.4 by 6.448.254.6+6.4
- ToolathlonGPT-5.4 by 6.448.254.6+6.4
- livebench_data_analysisGPT-5.4 by 5.673.779.3+5.6
- AA IntelligenceGPT-5.4 by 5.333.739+5.3
- AA Agentic IndexGPT-5.4 by 4.839.444.2+4.8
- HLE (with tools)GLM-5.2 by 2.654.752.1+2.6
- Artificial Analysis Coding IndexGPT-5.4 by 2.368.871.1+2.3
- AA-OmniscienceGPT-5.4 by 1.44.45.8+1.4
- HMMT Nov. 2025GPT-5.4 by 1.494.495.8+1.4
Questions people ask
Which is better, GLM-5.2 or GPT-5.4?
GPT-5.4 wins five of the seven areas where both have results: reasoning, facts, math, long documents and following instructions. GLM-5.2 wins agents, and costs 67% less. They are level on coding.
Which is better for coding?
Neither. They win 3 coding tests each of the 7 both models report, and 1 is a tie.
Which is cheaper?
GLM-5.2 costs $1.40 per million input tokens and $4.40 per million output tokens; GPT-5.4 costs $2.50 and $15.00. That makes GLM-5.2 about 67% cheaper for the same work.
How do you compare the two?
We use the 46 benchmark tests both models have published scores on. The verdict counts the 29 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 17 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.