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Claude Opus 4.1 vs MiMo-V2.5-Pro

SpecClaude Opus 4.1MiMo-V2.5-Pro
Respan Index31.2 (#76)30.2 (#80)
Blended price per 1M$30$0.81
Context window200K-
Input / output per 1M$15 / $75$0.48 / $1.8
Max output32K-
Inputtext, visiontext
Released2025-08-05-

Respan Index by category

Each category is scored 0 to 100, and how far ahead the winner is. Leads under a point are close to even.

CategoryClaude Opus 4.1MiMo-V2.5-Pro
Coding8.6 Claude Opus 4.16.9 MiMo-V2.5-Pro
Agents51.3 Claude Opus 4.148.6 MiMo-V2.5-Pro
Reasoning26.2 Claude Opus 4.125.3* MiMo-V2.5-Pro
Knowledge & language20.8* Claude Opus 4.121.1* MiMo-V2.5-Pro
Human preference50.4 Claude Opus 4.152.8 MiMo-V2.5-Pro

* Estimated: no published scores in that category. How the Respan Index works

Benchmarks both report

MiMo-V2.5-Pro leads on 2 of the 2 benchmarks both report. Higher is better. Each score links to where it was published.

BenchmarkClaude Opus 4.1MiMo-V2.5-Pro
LMArena Elo14501467
LMArena WebDev (LMArena)13901480

FAQ

Is Claude Opus 4.1 better than MiMo-V2.5-Pro?

Claude Opus 4.1 scores 31.2 on the Respan Index (#76), ahead of MiMo-V2.5-Pro at 30.2 (#80). MiMo-V2.5-Pro leads on 2 of the 2 benchmarks both report.

Which is cheaper, Claude Opus 4.1 or MiMo-V2.5-Pro?

Claude Opus 4.1 lists at $15 input and $75 output per 1M tokens; MiMo-V2.5-Pro at $0.48 and $1.8. MiMo-V2.5-Pro is 37x cheaper per token at list price.

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