Claude Opus 4.6 vs DeepSeek V4 Flash — Who Actually Wins? Real Benchmark Data (2026)

head to head

Claude Opus 4.6 vs DeepSeek V4 Flash

11 shared benchmarks

9

wins

0

ties

2

wins

100.0%

AIME

94.8%

84.0%

BrowseComp

73.2%

91.3%

GPQA Diamond

88.1%

40.0%

Humanity's Last Exam

34.8%

76.0%

LiveCodeBench

91.6%

82.0%

MMLU Pro

86.2%

93.0%

MRCR v2

78.7%

77.8%

SWE-bench Multilingual

73.3%

53.4%

SWE-bench Pro

52.6%

81.42%

SWE-bench Verified

79.0%

65.4%

Terminal-Bench 2.0

56.9%