Compare / Claude Opus 5 vs Kimi K2.6

Claude Opus 5 vs Kimi K2.6

20 results from 5 sources that measured both models. Each row is in the source's own units; there is no overall winner.

Claude Opus 5
Anthropic · profile
Kimi K2.6
Moonshot AI · profile
Results compared
20
Shared sources
5
BenchmarkMetricClaude Opus 5Kimi K2.6
Arena (formerly LMArena)reportedOverallArena rating 1,4901,450
Arena (formerly LMArena)reportedOverallArena rating 1,4881,456
Arena (formerly LMArena)reportedBusiness, management and financeArena rating 1,4861,455
Arena (formerly LMArena)reportedCreative writingArena rating 1,4721,433
Arena (formerly LMArena)reportedExpert promptsArena rating 1,5431,503
Arena (formerly LMArena)reportedInstruction followingArena rating 1,4971,456
Arena (formerly LMArena)reportedOverallArena rating 1,4911,461
Arena (formerly LMArena)reportedWriting, literature and languageArena rating 1,4821,441
Artificial AnalysisreportedArtificial Analysis Coding Indexindex score 78.061.8
Artificial AnalysisreportedArtificial Analysis Intelligence Indexindex score 50.827.0
Artificial AnalysisreportedGPQA Diamond% of questions 93.7%91.1%
Artificial AnalysisreportedHumanity's Last Exam% of questions 54.9%37.5%
Artificial AnalysisreportedLong-context reasoning (AA-LCR)% of questions 82.0%81.0%
Artificial AnalysisreportedSciCode% of problems 56.4%51.5%
Artificial AnalysisreportedTerminal-Bench 2.1% of tasks 89.1%65.9%
Artificial AnalysisreportedTerminal-Bench 4.0% of tasks 49.0%0.5%
Artificial AnalysisreportedΤ-bench banking% of tasks 44.7%23.3%
GDP.pdfreportedProfessional document tasks% of rubric 24.0%12.0%
SimpleQA Verified (Epoch AI)reportedCorrect answers% of questions 59.9%34.9%
Vending-Bench 2reportedMoney after a yearUS dollars $11,181.87$6,204.57

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.