Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Mellum2-12B-A2.5B-Thinking
59
MiMo-V2-Pro
84
Pick MiMo-V2-Pro if you want the stronger benchmark profile. Mellum2-12B-A2.5B-Thinking only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Coding
+8.1 difference
Mellum2-12B-A2.5B-Thinking
MiMo-V2-Pro
N/A
N/A
N/A
N/A
N/A
N/A
128K
1M
Pick MiMo-V2-Pro if you want the stronger benchmark profile. Mellum2-12B-A2.5B-Thinking only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
MiMo-V2-Pro is clearly ahead on the provisional aggregate, 84 to 59. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
MiMo-V2-Pro's sharpest advantage is in coding, where it averages 78 against 69.9.
MiMo-V2-Pro gives you the larger context window at 1M, compared with 128K for Mellum2-12B-A2.5B-Thinking.
MiMo-V2-Pro is ahead on BenchLM's provisional leaderboard, 84 to 59.
MiMo-V2-Pro has the edge for coding in this comparison, averaging 78 versus 69.9. Mellum2-12B-A2.5B-Thinking stays close enough that the answer can still flip depending on your workload.
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