GPT-5.5 vs Gemma 4 31B — Who Actually Wins? Real Benchmark Data (2026)

head to head

GPT-5.5 vs Gemma 4 31B

8 shared benchmarks

8

wins

0

ties

0

wins

93.5%

GPQA Diamond

84.3%

41.4%

Humanity's Last Exam

19.5%

92.2%

MATH-Vision

85.6%

81.2%

MMMU Pro

76.9%

74.0%

MRCR v2

66.4%

58.6%

SWE-bench Pro

35.7%

82.7%

Terminal-Bench 2.0

42.9%

98.0%

τ2-bench

86.4%