Head-to-head comparison across 3benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude Sonnet 4.6
83
MiMo-V2.5
72
Pick Claude Sonnet 4.6 if you want the stronger benchmark profile. MiMo-V2.5 only becomes the better choice if multimodal & grounded is the priority or you need the larger 1M context window.
Agentic
+0.7 difference
Coding
+10.3 difference
Multimodal
+1.5 difference
Claude Sonnet 4.6
MiMo-V2.5
$3 / $15
$null / $null
44 t/s
N/A
1.48s
N/A
200K
1M
Pick Claude Sonnet 4.6 if you want the stronger benchmark profile. MiMo-V2.5 only becomes the better choice if multimodal & grounded is the priority or you need the larger 1M context window.
Claude Sonnet 4.6 is clearly ahead on the provisional aggregate, 83 to 72. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Claude Sonnet 4.6's sharpest advantage is in coding, where it averages 66.4 against 56.1. The single biggest benchmark swing on the page is Terminal-Bench 2.0, 59.1% to 65.8%. MiMo-V2.5 does hit back in multimodal & grounded, so the answer changes if that is the part of the workload you care about most.
MiMo-V2.5 is the reasoning model in the pair, while Claude Sonnet 4.6 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 200K for Claude Sonnet 4.6.
Claude Sonnet 4.6 is ahead on BenchLM's provisional leaderboard, 83 to 72. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 59.1% and 65.8%.
Claude Sonnet 4.6 has the edge for coding in this comparison, averaging 66.4 versus 56.1. MiMo-V2.5 stays close enough that the answer can still flip depending on your workload.
MiMo-V2.5 has the edge for agentic tasks in this comparison, averaging 65.8 versus 65.1. Inside this category, Gert Labs is the benchmark that creates the most daylight between them.
MiMo-V2.5 has the edge for multimodal and grounded tasks in this comparison, averaging 78.9 versus 77.4. Inside this category, CharXiv is the benchmark that creates the most daylight between them.
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