Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude 4 Sonnet
50
Gemini 2.5 Pro
64
Pick Gemini 2.5 Pro if you want the stronger benchmark profile. Claude 4 Sonnet only becomes the better choice if coding is the priority.
Coding
+8.9 difference
Claude 4 Sonnet
Gemini 2.5 Pro
$3 / $15
$1.25 / $10
40 t/s
117 t/s
1.33s
21.19s
200K
1M
Pick Gemini 2.5 Pro if you want the stronger benchmark profile. Claude 4 Sonnet only becomes the better choice if coding is the priority.
Gemini 2.5 Pro is clearly ahead on the provisional aggregate, 64 to 50. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Claude 4 Sonnet is also the more expensive model on tokens at $3.00 input / $15.00 output per 1M tokens, versus $1.25 input / $10.00 output per 1M tokens for Gemini 2.5 Pro. Gemini 2.5 Pro gives you the larger context window at 1M, compared with 200K for Claude 4 Sonnet.
Gemini 2.5 Pro is ahead on BenchLM's provisional leaderboard, 64 to 50. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 72.7% and 63.8%.
Claude 4 Sonnet has the edge for coding in this comparison, averaging 72.7 versus 63.8. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
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