Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude 3.5 Sonnet
42
Claude 4 Sonnet
52
Pick Claude 4 Sonnet if you want the stronger benchmark profile. Claude 3.5 Sonnet only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Coding
+23.7 difference
Claude 3.5 Sonnet
Claude 4 Sonnet
$null / $null
$null / $null
N/A
40 t/s
N/A
1.33s
200K
200K
Pick Claude 4 Sonnet if you want the stronger benchmark profile. Claude 3.5 Sonnet only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Claude 4 Sonnet is clearly ahead on the provisional aggregate, 52 to 42. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Claude 4 Sonnet's sharpest advantage is in coding, where it averages 72.7 against 49. The single biggest benchmark swing on the page is SWE-bench Verified, 49% to 72.7%.
Claude 4 Sonnet is ahead on BenchLM's provisional leaderboard, 52 to 42. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 49% and 72.7%.
Claude 4 Sonnet has the edge for coding in this comparison, averaging 72.7 versus 49. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
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