Head-to-head comparison across 2benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Gemma 4 12B
53
MiMo-V2.5-Pro
86
Pick MiMo-V2.5-Pro if you want the stronger benchmark profile. Gemma 4 12B only becomes the better choice if knowledge is the priority.
Coding
+14.8 difference
Knowledge
+29.8 difference
Gemma 4 12B
MiMo-V2.5-Pro
N/A
$null / $null
N/A
N/A
N/A
N/A
256K
1M
Pick MiMo-V2.5-Pro if you want the stronger benchmark profile. Gemma 4 12B only becomes the better choice if knowledge is the priority.
MiMo-V2.5-Pro is clearly ahead on the provisional aggregate, 86 to 53. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
MiMo-V2.5-Pro gives you the larger context window at 1M, compared with 256K for Gemma 4 12B.
MiMo-V2.5-Pro is ahead on BenchLM's provisional leaderboard, 86 to 53.
Gemma 4 12B has the edge for knowledge tasks in this comparison, averaging 77.8 versus 48. Inside this category, HLE w/o tools is the benchmark that creates the most daylight between them.
Gemma 4 12B has the edge for coding in this comparison, averaging 72 versus 57.2. MiMo-V2.5-Pro stays close enough that the answer can still flip depending on your workload.
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