Compare / GPT-5.1 vs GLM 5.3

GPT-5.1 vs GLM 5.3

16 results from 4 sources that measured both models. Each row is in the source's own units; there is no overall winner.

GPT-5.1
OpenAI · profile
GLM 5.3
Z.ai · profile
Results compared
16
Shared sources
4
BenchmarkMetricGPT-5.1GLM 5.3
Arena (formerly LMArena)reportedOverallArena rating 1,4591,468
Arena (formerly LMArena)reportedBusiness, management and financeArena rating 1,4481,474
Arena (formerly LMArena)reportedCreative writingArena rating 1,4281,456
Arena (formerly LMArena)reportedExpert promptsArena rating 1,4821,516
Arena (formerly LMArena)reportedInstruction followingArena rating 1,4501,480
Arena (formerly LMArena)reportedOverallArena rating 1,4561,480
Arena (formerly LMArena)reportedWriting, literature and languageArena rating 1,4371,470
Artificial AnalysisreportedArtificial Analysis Coding Indexindex score 49.474.8
Artificial AnalysisreportedArtificial Analysis Intelligence Indexindex score 24.744.8
Artificial AnalysisreportedGPQA Diamond% of questions 87.3%91.7%
Artificial AnalysisreportedHumanity's Last Exam% of questions 28.5%42.3%
Artificial AnalysisreportedLong-context reasoning (AA-LCR)% of questions 80.0%79.7%
Artificial AnalysisreportedTerminal-Bench 2.1% of tasks 52.4%83.9%
Artificial AnalysisreportedΤ-bench banking% of tasks 15.9%50.3%
SimpleQA Verified (Epoch AI)reportedCorrect answers% of questions 48.0%41.0%
Vending-Bench 2reportedMoney after a yearUS dollars $1,473.43$8,163.61

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.