Head-to-head comparison across 2benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Composer 2
73
MiMo-V2.5
74
Pick MiMo-V2.5 if you want the stronger benchmark profile. Composer 2 only becomes the better choice if coding is the priority.
Agentic
+4.1 difference
Coding
+1.9 difference
Composer 2
MiMo-V2.5
$0.5 / $2.5
$0.4 / $2
N/A
N/A
N/A
N/A
200K
1M
Pick MiMo-V2.5 if you want the stronger benchmark profile. Composer 2 only becomes the better choice if coding is the priority.
MiMo-V2.5 finishes one point ahead on BenchLM's provisional leaderboard, 74 to 73. That is enough to call, but not enough to treat as a blowout. This matchup comes down to a few meaningful edges rather than one model dominating the board.
MiMo-V2.5's sharpest advantage is in agentic, where it averages 65.8 against 61.7. The single biggest benchmark swing on the page is Terminal-Bench 2.0, 61.7% to 65.8%. Composer 2 does hit back in coding, so the answer changes if that is the part of the workload you care about most.
Composer 2 is also the more expensive model on tokens at $0.50 input / $2.50 output per 1M tokens, versus $0.40 input / $2.00 output per 1M tokens for MiMo-V2.5. MiMo-V2.5 gives you the larger context window at 1M, compared with 200K for Composer 2.
MiMo-V2.5 is ahead on BenchLM's provisional leaderboard, 74 to 73. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 61.7% and 65.8%.
Composer 2 has the edge for coding in this comparison, averaging 58 versus 56.1. Inside this category, terminalBench2 is the benchmark that creates the most daylight between them.
MiMo-V2.5 has the edge for agentic tasks in this comparison, averaging 65.8 versus 61.7. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
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