Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude Sonnet 5
94
o1
56
Pick Claude Sonnet 5 if you want the stronger benchmark profile. o1 only becomes the better choice if knowledge is the priority.
Knowledge
+18.3 difference
Claude Sonnet 5
o1
$3 / $15
$15 / $60
N/A
98 t/s
N/A
32.29s
1M
200K
Pick Claude Sonnet 5 if you want the stronger benchmark profile. o1 only becomes the better choice if knowledge is the priority.
Claude Sonnet 5 is clearly ahead on the provisional aggregate, 94 to 56. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
o1 is also the more expensive model on tokens at $15.00 input / $60.00 output per 1M tokens, versus $3.00 input / $15.00 output per 1M tokens for Claude Sonnet 5. That is roughly 4.0x on output cost alone. Claude Sonnet 5 gives you the larger context window at 1M, compared with 200K for o1.
Claude Sonnet 5 is ahead on BenchLM's provisional leaderboard, 94 to 56.
o1 has the edge for knowledge tasks in this comparison, averaging 75.7 versus 57.4. Claude Sonnet 5 stays close enough that the answer can still flip depending on your workload.
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