Claude Sonnet 4.6 vs GPT-5 mini — Who Actually Wins? Real Benchmark Data (2026)

head to head

Claude Sonnet 4.6 vs GPT-5 mini

4 shared benchmarks

2

wins

0

ties

2

wins

94.0%

AIME

94.2%

89.9%

GPQA Diamond

85.0%

79.2%

MMLU Pro

83.3%

79.6%

SWE-bench Verified

60.4%