Claude Sonnet 4.6 vs GPT-5.2 — Who Actually Wins? Real Benchmark Data (2026)

head to head

Claude Sonnet 4.6 vs GPT-5.2

3 shared benchmarks

0

wins

0

ties

3

wins

94.0%

AIME

100.0%

89.9%

GPQA Diamond

92.4%

79.6%

SWE-bench Verified

80.0%