Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-4.1 nano
27
MiMo-V2.5-Pro
86
Pick MiMo-V2.5-Pro if you want the stronger benchmark profile. GPT-4.1 nano only becomes the better choice if knowledge is the priority or you would rather avoid the extra latency and token burn of a reasoning model.
Knowledge
+2.3 difference
GPT-4.1 nano
MiMo-V2.5-Pro
$0.1 / $0.4
$null / $null
181 t/s
N/A
0.63s
N/A
1M
1M
Pick MiMo-V2.5-Pro if you want the stronger benchmark profile. GPT-4.1 nano only becomes the better choice if knowledge is the priority or you would rather avoid the extra latency and token burn of a reasoning model.
MiMo-V2.5-Pro is clearly ahead on the provisional aggregate, 86 to 27. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
MiMo-V2.5-Pro is the reasoning model in the pair, while GPT-4.1 nano is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use.
MiMo-V2.5-Pro is ahead on BenchLM's provisional leaderboard, 86 to 27.
GPT-4.1 nano has the edge for knowledge tasks in this comparison, averaging 50.3 versus 48. Inside this category, AA-Omniscience Index is the benchmark that creates the most daylight between them.
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