Claude Opus 4.6 vs Grok 4 — Who Actually Wins? Real Benchmark Data (2026)

head to head

Claude Opus 4.6 vs Grok 4

6 shared benchmarks

4

wins

0

ties

2

wins

100.0%

AIME

94.0%

72.0%

Aider Polyglot

79.6%

91.3%

GPQA Diamond

88.0%

53.1%

Humanity's Last Exam

24.0%

82.0%

MMLU Pro

87.0%

81.42%

SWE-bench Verified

58.6%