GPT-5.4 vs Kimi K2.6 — Who Actually Wins? Real Benchmark Data (2026)

head to head

GPT-5.4 vs Kimi K2.6

8 shared benchmarks

5

wins

0

ties

3

wins

82.7%

BrowseComp

83.2%

92.8%

GPQA Diamond

90.5%

36.24%

Humanity's Last Exam

34.7%

81.2%

MMMU Pro

79.4%

75.0%

OSWorld

73.1%

57.7%

SWE-bench Pro

58.6%

77.2%

SWE-bench Verified

80.2%

75.1%

Terminal-Bench 2.0

66.7%