Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude Sonnet 4.5
67
Gemini 3 Pro
83
Pick Gemini 3 Pro if you want the stronger benchmark profile. Claude Sonnet 4.5 only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Reasoning
+17.5 difference
Claude Sonnet 4.5
Gemini 3 Pro
$3 / $15
$null / $null
N/A
109 t/s
N/A
32.65s
200K
2M
Pick Gemini 3 Pro if you want the stronger benchmark profile. Claude Sonnet 4.5 only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Gemini 3 Pro is clearly ahead on the provisional aggregate, 83 to 67. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Gemini 3 Pro's sharpest advantage is in reasoning, where it averages 31.1 against 13.6. The single biggest benchmark swing on the page is ARC-AGI-2, 13.6% to 31.1%.
Gemini 3 Pro gives you the larger context window at 2M, compared with 200K for Claude Sonnet 4.5.
Gemini 3 Pro is ahead on BenchLM's provisional leaderboard, 83 to 67. The biggest single separator in this matchup is ARC-AGI-2, where the scores are 13.6% and 31.1%.
Gemini 3 Pro has the edge for reasoning in this comparison, averaging 31.1 versus 13.6. Inside this category, ARC-AGI-2 is the benchmark that creates the most daylight between them.
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