Head-to-head comparison across 3benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Kimi K2.5 (Reasoning)
78
MiMo-V2-Flash
62
Pick Kimi K2.5 (Reasoning) if you want the stronger benchmark profile. MiMo-V2-Flash only becomes the better choice if you need the larger 256K context window.
Coding
+3.4 difference
Knowledge
+2.8 difference
Math
+2.0 difference
Kimi K2.5 (Reasoning)
MiMo-V2-Flash
$null / $null
$0 / $0
N/A
129 t/s
N/A
2.14s
128K
256K
Pick Kimi K2.5 (Reasoning) if you want the stronger benchmark profile. MiMo-V2-Flash only becomes the better choice if you need the larger 256K context window.
Kimi K2.5 (Reasoning) is clearly ahead on the provisional aggregate, 78 to 62. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Kimi K2.5 (Reasoning)'s sharpest advantage is in coding, where it averages 76.8 against 73.4. The single biggest benchmark swing on the page is GPQA, 87.6% to 83.7%.
MiMo-V2-Flash gives you the larger context window at 256K, compared with 128K for Kimi K2.5 (Reasoning).
Kimi K2.5 (Reasoning) is ahead on BenchLM's provisional leaderboard, 78 to 62. The biggest single separator in this matchup is GPQA, where the scores are 87.6% and 83.7%.
Kimi K2.5 (Reasoning) has the edge for knowledge tasks in this comparison, averaging 87.3 versus 84.5. Inside this category, GPQA is the benchmark that creates the most daylight between them.
Kimi K2.5 (Reasoning) has the edge for coding in this comparison, averaging 76.8 versus 73.4. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
Kimi K2.5 (Reasoning) has the edge for math in this comparison, averaging 96.1 versus 94.1. Inside this category, AIME 2025 is the benchmark that creates the most daylight between them.
For engineers, researchers, and the plain curious — a weekly brief on new models, ranking shifts, and pricing changes.
Free. No spam. Unsubscribe anytime.