Compare / Kimi K2.6 vs Grok 4.3

Kimi K2.6 vs Grok 4.3

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

Kimi K2.6
Moonshot AI · profile
Grok 4.3
xAI · profile
Results compared
25
Shared sources
6
BenchmarkMetricKimi K2.6Grok 4.3
Arena (formerly LMArena)reportedOverallArena rating 1,4561,428
Arena (formerly LMArena)reportedBusiness, management and financeArena rating 1,4551,440
Arena (formerly LMArena)reportedCreative writingArena rating 1,4331,423
Arena (formerly LMArena)reportedExpert promptsArena rating 1,5031,452
Arena (formerly LMArena)reportedInstruction followingArena rating 1,4561,415
Arena (formerly LMArena)reportedOverallArena rating 1,4611,442
Arena (formerly LMArena)reportedWriting, literature and languageArena rating 1,4411,424
Artificial AnalysisreportedArtificial Analysis Coding Indexindex score 61.842.2
Artificial AnalysisreportedArtificial Analysis Intelligence Indexindex score 27.024.9
Artificial AnalysisreportedGPQA Diamond% of questions 91.1%90.1%
Artificial AnalysisreportedHumanity's Last Exam% of questions 37.5%37.2%
Artificial AnalysisreportedIFBench% of instructions 76.0%83.3%
Artificial AnalysisreportedLong-context reasoning (AA-LCR)% of questions 81.0%75.0%
Artificial AnalysisreportedSciCode% of problems 51.5%48.3%
Artificial AnalysisreportedTerminal-Bench 2.1% of tasks 65.9%39.7%
Artificial AnalysisreportedTerminal-Bench 4.0% of tasks 0.5%0.0%
Artificial AnalysisreportedTerminal-Bench Hard% of tasks 43.9%37.9%
Artificial AnalysisreportedΤ-bench banking% of tasks 23.3%12.4%
Artificial AnalysisreportedΤ²-bench telecom% of tasks 95.9%97.7%
GDP.pdfreportedProfessional document tasks% of rubric 12.0%8.0%
SimpleQA Verified (Epoch AI)reportedCorrect answers% of questions 34.9%33.2%
UGI LeaderboardreportedRequested-length error% off the requested word count 18.0%21.0%
UGI LeaderboardreportedStyle adherencescore from 0 to 1 0.350.34
UGI LeaderboardreportedWriting scorescore out of 100 64.457.7
Vending-Bench 2reportedMoney after a yearUS dollars $6,204.57$35.26

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.