Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude 3.5 Sonnet
41
DeepSeek V4 Flash Base
31
Pick Claude 3.5 Sonnet if you want the stronger benchmark profile. DeepSeek V4 Flash Base only becomes the better choice if you need the larger 1M context window.
Knowledge
+7.2 difference
Claude 3.5 Sonnet
DeepSeek V4 Flash Base
$3 / $15
$null / $null
N/A
N/A
N/A
N/A
200K
1M
Pick Claude 3.5 Sonnet if you want the stronger benchmark profile. DeepSeek V4 Flash Base only becomes the better choice if you need the larger 1M context window.
Claude 3.5 Sonnet is clearly ahead on the provisional aggregate, 41 to 31. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Claude 3.5 Sonnet's sharpest advantage is in knowledge, where it averages 59.4 against 52.2.
DeepSeek V4 Flash Base gives you the larger context window at 1M, compared with 200K for Claude 3.5 Sonnet.
Claude 3.5 Sonnet is ahead on BenchLM's provisional leaderboard, 41 to 31.
Claude 3.5 Sonnet has the edge for knowledge tasks in this comparison, averaging 59.4 versus 52.2. DeepSeek V4 Flash Base stays close enough that the answer can still flip depending on your workload.
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