Claude Mythos 5 vs Claude Opus 4.7 — Who Actually Wins? Real Benchmark Data (2026)

head to head

Claude Mythos 5 vs Claude Opus 4.7

4 shared benchmarks

3

wins

0

ties

1

wins

88.0%

BrowseComp

79.3%

94.1%

GPQA Diamond

94.2%

80.3%

SWE-bench Pro

64.3%

88.0%

Terminal-Bench 2.1

66.1%