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

head to head

Claude Opus 4.7 vs Claude Sonnet 5

4 shared benchmarks

2

wins

0

ties

2

wins

82.1%

CharXiv

77.0%

78.0%

OSWorld-Verified

81.2%

64.3%

SWE-bench Pro

63.2%

66.1%

Terminal-Bench 2.1

80.4%