Compare / GPT-5 Nano vs GLM 5.3

GPT-5 Nano vs GLM 5.3

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

GPT-5 Nano
OpenAI · profile
GLM 5.3
Z.ai · profile
Results compared
11
Shared sources
3
BenchmarkMetricGPT-5 NanoGLM 5.3
Arena (formerly LMArena)reportedBusiness, management and financeArena rating 1,3391,474
Arena (formerly LMArena)reportedCreative writingArena rating 1,2471,456
Arena (formerly LMArena)reportedExpert promptsArena rating 1,3541,516
Arena (formerly LMArena)reportedInstruction followingArena rating 1,3271,480
Arena (formerly LMArena)reportedOverallArena rating 1,3381,480
Arena (formerly LMArena)reportedWriting, literature and languageArena rating 1,2891,470
Artificial AnalysisreportedArtificial Analysis Intelligence Indexindex score 13.044.8
Artificial AnalysisreportedGPQA Diamond% of questions 67.6%91.7%
Artificial AnalysisreportedHumanity's Last Exam% of questions 9.5%42.3%
Artificial AnalysisreportedLong-context reasoning (AA-LCR)% of questions 45.0%79.7%
SimpleQA Verified (Epoch AI)reportedCorrect answers% of questions 11.7%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.