GPT-5.5 (High) vs MiMo-V2.5
Which is better for the money: GPT-5.5 (High) by OpenAI or MiMo-V2.5 by Xiaomi? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Trade-off
Verdict
Depends on your budget
GPT-5.5 (High) scores 15.2 points higher (37.0 vs 21.8) but costs 55× as much to run the benchmark ($3411 vs $61.9; flagship vs mid-range cost classes). They are not alternatives at one budget: pick GPT-5.5 (High) when you need intelligence above 21.8, and MiMo-V2.5 when 21.8 is enough.
| Metric | GPT-5.5 (High) | MiMo-V2.5 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 37.0 | 21.8 | −41.1% MiMo-V2.5 is 41.1% less intelligent |
| Total AA cost (lower is better) | $3,410.76 | $61.93 | −98.2% MiMo-V2.5 is 98.2% cheaper |
| End-to-end time (lower is better) | 19.56s | 53.92s | +175.7% MiMo-V2.5 is 175.7% slower |
| Price per 1M tokens (in / out) | $5.00 / $30.0 | $0.13 / $0.27 | |
| Input modalities | Text, Image | Text, Image |
MiMo-V2.5 vs GPT-5.5 (High): 41.1% less intelligence, 98.2% less cost to run the AA benchmark, and 175.7% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.5 (High) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
- MiMo-V2.5 is off the frontier: at the same or lower cost, Claude Haiku 5.5 (Medium) scores 34.50 for $56.4.
GPT-5.5 (High)MiMo-V2.5Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-5-high/mimo-v2-5-0424 · Markdown: /api/v1/compare/gpt-5-5-high/mimo-v2-5-0424?format=md · llms.txt · agent skill