Compare / Kimi K2 0905 vs Grok 4.3

Kimi K2 0905 vs Grok 4.3

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

Kimi K2 0905
Moonshot AI · profile
Grok 4.3
xAI · profile
Results compared
17
Shared sources
3
BenchmarkMetricKimi K2 0905Grok 4.3
Arena (formerly LMArena)reportedOverallArena rating 1,4031,428
Arena (formerly LMArena)reportedBusiness, management and financeArena rating 1,4041,440
Arena (formerly LMArena)reportedCreative writingArena rating 1,3821,423
Arena (formerly LMArena)reportedExpert promptsArena rating 1,4171,452
Arena (formerly LMArena)reportedInstruction followingArena rating 1,3901,415
Arena (formerly LMArena)reportedOverallArena rating 1,4191,442
Arena (formerly LMArena)reportedWriting, literature and languageArena rating 1,3821,424
Artificial AnalysisreportedArtificial Analysis Intelligence Indexindex score 15.324.9
Artificial AnalysisreportedGPQA Diamond% of questions 76.7%90.1%
Artificial AnalysisreportedHumanity's Last Exam% of questions 6.4%37.2%
Artificial AnalysisreportedIFBench% of instructions 41.7%83.3%
Artificial AnalysisreportedLong-context reasoning (AA-LCR)% of questions 53.0%75.0%
Artificial AnalysisreportedTerminal-Bench Hard% of tasks 23.5%37.9%
Artificial AnalysisreportedΤ²-bench telecom% of tasks 73.4%97.7%
UGI LeaderboardreportedRequested-length error% off the requested word count 22.0%21.0%
UGI LeaderboardreportedStyle adherencescore from 0 to 1 0.310.34
UGI LeaderboardreportedWriting scorescore out of 100 54.457.7

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.