GPT-5.6 Sol vs GPT-5.4 — Who Actually Wins? Real Benchmark Data (2026)

head to head

GPT-5.6 Sol vs GPT-5.4

9 shared benchmarks

9

wins

0

ties

0

wins

7.78%

ARC-AGI 3

0.26%

52.7%

Agents' Last Exam

44.7%

90.4%

BrowseComp

82.7%

72.7%

DeepSWE

52.0%

83.0%

FrontierMath

47.6%

94.6%

GPQA Diamond

92.8%

44.5%

Humanity's Last Exam

36.24%

83.0%

MMMU Pro

81.2%

64.6%

SWE-bench Pro

57.7%