Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude 4.1 Opus
53
Claude Sonnet 4.5
67
Pick Claude Sonnet 4.5 if you want the stronger benchmark profile. Claude 4.1 Opus only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Coding
+2.7 difference
Claude 4.1 Opus
Claude Sonnet 4.5
$null / $null
$3 / $15
29 t/s
N/A
1.66s
N/A
200K
200K
Pick Claude Sonnet 4.5 if you want the stronger benchmark profile. Claude 4.1 Opus only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Claude Sonnet 4.5 is clearly ahead on the provisional aggregate, 67 to 53. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Claude Sonnet 4.5's sharpest advantage is in coding, where it averages 77.2 against 74.5. The single biggest benchmark swing on the page is SWE-bench Verified, 74.5% to 77.2%.
Claude Sonnet 4.5 is ahead on BenchLM's provisional leaderboard, 67 to 53. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 74.5% and 77.2%.
Claude Sonnet 4.5 has the edge for coding in this comparison, averaging 77.2 versus 74.5. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
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