Compare / GPT-5 vs GLM 5.3

GPT-5 vs GLM 5.3

15 results from 3 sources that measured both models. Each row is in the source's own units; there is no overall winner.

GPT-5
OpenAI · profile
GLM 5.3
Z.ai · profile
Results compared
15
Shared sources
3
BenchmarkMetricGPT-5GLM 5.3
Arena (formerly LMArena)reportedOverallArena rating 1,4211,468
Arena (formerly LMArena)reportedBusiness, management and financeArena rating 1,4131,474
Arena (formerly LMArena)reportedCreative writingArena rating 1,3731,456
Arena (formerly LMArena)reportedExpert promptsArena rating 1,4601,516
Arena (formerly LMArena)reportedInstruction followingArena rating 1,4101,480
Arena (formerly LMArena)reportedOverallArena rating 1,4351,480
Arena (formerly LMArena)reportedWriting, literature and languageArena rating 1,3971,470
Artificial AnalysisreportedArtificial Analysis Coding Indexindex score 37.874.8
Artificial AnalysisreportedArtificial Analysis Intelligence Indexindex score 23.044.8
Artificial AnalysisreportedGPQA Diamond% of questions 85.4%91.7%
Artificial AnalysisreportedHumanity's Last Exam% of questions 28.5%42.3%
Artificial AnalysisreportedLong-context reasoning (AA-LCR)% of questions 78.2%79.7%
Artificial AnalysisreportedTerminal-Bench 2.1% of tasks 35.2%83.9%
Artificial AnalysisreportedΤ-bench banking% of tasks 22.1%50.3%
SimpleQA Verified (Epoch AI)reportedCorrect answers% of questions 50.1%41.0%

Bold green marks the better value on that metric. Where a source reports ranges that overlap, the difference may not be meaningful; see the benchmark page for ranges.