Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-5.2
81
MiMo-V2-Omni
83
Pick MiMo-V2-Omni if you want the stronger benchmark profile. GPT-5.2 only becomes the better choice if you need the larger 400K context window.
Coding
+10.1 difference
GPT-5.2
MiMo-V2-Omni
$1.75 / $14
N/A
73 t/s
N/A
130.34s
N/A
400K
262K
Pick MiMo-V2-Omni if you want the stronger benchmark profile. GPT-5.2 only becomes the better choice if you need the larger 400K context window.
MiMo-V2-Omni has the cleaner provisional overall profile here, landing at 83 versus 81. It is a real lead, but still close enough that category-level strengths matter more than the headline number.
MiMo-V2-Omni's sharpest advantage is in coding, where it averages 74.8 against 64.7. The single biggest benchmark swing on the page is SWE-bench Verified, 80% to 74.8%.
GPT-5.2 gives you the larger context window at 400K, compared with 262K for MiMo-V2-Omni.
MiMo-V2-Omni is ahead on BenchLM's provisional leaderboard, 83 to 81. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 80% and 74.8%.
MiMo-V2-Omni has the edge for coding in this comparison, averaging 74.8 versus 64.7. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
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