Compare / Grok 4.5 vs GLM 4.5 Air

Grok 4.5 vs GLM 4.5 Air

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

Grok 4.5
xAI · profile
GLM 4.5 Air
Z.ai · profile
Results compared
14
Shared sources
3
BenchmarkMetricGrok 4.5GLM 4.5 Air
Arena (formerly LMArena)reportedOverallArena rating 1,4651,395
Arena (formerly LMArena)reportedBusiness, management and financeArena rating 1,4651,372
Arena (formerly LMArena)reportedCreative writingArena rating 1,4521,327
Arena (formerly LMArena)reportedExpert promptsArena rating 1,4881,390
Arena (formerly LMArena)reportedInstruction followingArena rating 1,4621,361
Arena (formerly LMArena)reportedOverallArena rating 1,4651,373
Arena (formerly LMArena)reportedWriting, literature and languageArena rating 1,4591,341
Artificial AnalysisreportedArtificial Analysis Intelligence Indexindex score 38.811.1
Artificial AnalysisreportedGPQA Diamond% of questions 93.1%73.3%
Artificial AnalysisreportedHumanity's Last Exam% of questions 42.7%7.0%
Artificial AnalysisreportedLong-context reasoning (AA-LCR)% of questions 79.3%46.7%
UGI LeaderboardreportedRequested-length error% off the requested word count 21.0%10.0%
UGI LeaderboardreportedStyle adherencescore from 0 to 1 0.320.33
UGI LeaderboardreportedWriting scorescore out of 100 60.047.0

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.