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

head to head

Claude Opus 4.6 vs Claude Sonnet 4.6

7 shared benchmarks

7

wins

0

ties

0

wins

100.0%

AIME

94.0%

84.0%

BrowseComp

74.0%

91.3%

GPQA Diamond

89.9%

82.0%

MMLU Pro

79.2%

72.7%

OSWorld

72.5%

81.42%

SWE-bench Verified

79.6%

81.8%

Terminal-Bench 2.0

59.1%