Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Grok Code Fast 1
42
MiMo-V2.5
74
Pick MiMo-V2.5 if you want the stronger benchmark profile. Grok Code Fast 1 only becomes the better choice if coding is the priority or you would rather avoid the extra latency and token burn of a reasoning model.
Coding
+14.7 difference
Grok Code Fast 1
MiMo-V2.5
$null / $null
$0.4 / $2
172 t/s
N/A
2.81s
N/A
256K
1M
Pick MiMo-V2.5 if you want the stronger benchmark profile. Grok Code Fast 1 only becomes the better choice if coding is the priority or you would rather avoid the extra latency and token burn of a reasoning model.
MiMo-V2.5 is clearly ahead on the provisional aggregate, 74 to 42. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
MiMo-V2.5 is the reasoning model in the pair, while Grok Code Fast 1 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 gives you the larger context window at 1M, compared with 256K for Grok Code Fast 1.
MiMo-V2.5 is ahead on BenchLM's provisional leaderboard, 74 to 42.
Grok Code Fast 1 has the edge for coding in this comparison, averaging 70.8 versus 56.1. MiMo-V2.5 stays close enough that the answer can still flip depending on your workload.
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