Compare / GPT-5.6 Luna vs GLM 5.3 Flash

GPT-5.6 Luna vs GLM 5.3 Flash

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

GPT-5.6 Luna
OpenAI · profile
GLM 5.3 Flash
Z.ai · profile
Results compared
21
Shared sources
3
BenchmarkMetricGPT-5.6 LunaGLM 5.3 Flash
Arena (formerly LMArena)reportedConfirmed task successIPS effect estimate -0.050.07
Arena (formerly LMArena)reportedPraise over complaintIPS effect estimate -0.04-0.00
Arena (formerly LMArena)reportedSteerabilityIPS effect estimate 0.02-0.01
Arena (formerly LMArena)reportedTool groundingIPS effect estimate 0.000.00
Arena (formerly LMArena)reportedOverallArena rating 1,4611,467
Arena (formerly LMArena)reportedBusiness, management and financeArena rating 1,4631,463
Arena (formerly LMArena)reportedCreative writingArena rating 1,4121,433
Arena (formerly LMArena)reportedExpert promptsArena rating 1,4911,510
Arena (formerly LMArena)reportedInstruction followingArena rating 1,4461,474
Arena (formerly LMArena)reportedOverallArena rating 1,4541,474
Arena (formerly LMArena)reportedWriting, literature and languageArena rating 1,4351,450
Artificial AnalysisreportedArtificial Analysis Coding Indexindex score 71.471.5
Artificial AnalysisreportedArtificial Analysis Intelligence Indexindex score 37.341.8
Artificial AnalysisreportedGPQA Diamond% of questions 91.1%91.2%
Artificial AnalysisreportedHumanity's Last Exam% of questions 39.5%39.9%
Artificial AnalysisreportedLong-context reasoning (AA-LCR)% of questions 83.7%80.0%
Artificial AnalysisreportedSciCode% of problems 53.6%51.6%
Artificial AnalysisreportedTerminal-Bench 2.1% of tasks 80.9%84.3%
Artificial AnalysisreportedTerminal-Bench 4.0% of tasks 11.6%32.8%
Artificial AnalysisreportedΤ-bench banking% of tasks 31.1%47.2%
GDP.pdfreportedProfessional document tasks% of rubric 22.7%14.0%

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.