Claude Mythos Preview vs Qwen3.5 27B — Who Actually Wins? Real Benchmark Data (2026)

head to head

Claude Mythos Preview vs Qwen3.5 27B

5 shared benchmarks

5

wins

0

ties

0

wins

86.9%

BrowseComp

61.0%

94.6%

GPQA Diamond

85.5%

56.8%

Humanity's Last Exam

24.3%

79.6%

OSWorld

56.2%

93.9%

SWE-bench Verified

72.4%