GPT-5.6 Sol vs Claude Opus 4.7 — Who Actually Wins? Real Benchmark Data (2026)

head to head

GPT-5.6 Sol vs Claude Opus 4.7

10 shared benchmarks

9

wins

0

ties

1

wins

90.4%

BrowseComp

79.3%

84.6%

CharXiv

82.1%

83.0%

FrontierMath

43.8%

94.6%

GPQA Diamond

94.2%

44.5%

Humanity's Last Exam

46.9%

83.6%

MCP-Atlas

79.1%

83.0%

MMMU Pro

75.2%

62.6%

OSWorld 2.0

48.9%

64.6%

SWE-bench Pro

64.3%

88.8%

Terminal-Bench 2.1

66.1%