Compare / GPT-6 Sol vs Grok 4.5

GPT-6 Sol vs Grok 4.5

20 results from 6 sources that measured both models. Each row is in the source's own units; there is no overall winner.

GPT-6 Sol
OpenAI · profile
Grok 4.5
xAI · profile
Results compared
20
Shared sources
6
BenchmarkMetricGPT-6 SolGrok 4.5
APEX-AgentsreportedTasks passed% of tasks 54.3%56.2%
Arena (formerly LMArena)reportedConfirmed task successIPS effect estimate 0.11-0.01
Arena (formerly LMArena)reportedPraise over complaintIPS effect estimate 0.11-0.03
Arena (formerly LMArena)reportedSteerabilityIPS effect estimate 0.150.04
Arena (formerly LMArena)reportedTool groundingIPS effect estimate 0.000.00
Arena (formerly LMArena)reportedOverallArena rating 1,4241,465
Arena (formerly LMArena)reportedBusiness, management and financeArena rating 1,4651,465
Arena (formerly LMArena)reportedCreative writingArena rating 1,4511,452
Arena (formerly LMArena)reportedExpert promptsArena rating 1,5071,488
Arena (formerly LMArena)reportedInstruction followingArena rating 1,4471,462
Arena (formerly LMArena)reportedOverallArena rating 1,4571,465
Arena (formerly LMArena)reportedWriting, literature and languageArena rating 1,4401,459
Artificial AnalysisreportedArtificial Analysis Intelligence Indexindex score 47.638.8
Artificial AnalysisreportedHumanity's Last Exam% of questions 47.9%42.7%
Artificial AnalysisreportedLong-context reasoning (AA-LCR)% of questions 83.7%79.3%
Artificial AnalysisreportedSciCode% of problems 57.6%55.0%
Artificial AnalysisreportedTerminal-Bench 4.0% of tasks 43.9%10.6%
GDP.pdfreportedProfessional document tasks% of rubric 26.4%14.0%
SimpleQA Verified (Epoch AI)reportedCorrect answers% of questions 60.7%48.3%
Vending-Bench 2reportedMoney after a yearUS dollars $14,427.85$3,887.43

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.