GPT-5.5 (High) vs MiMo-V2.5-Pro (Reasoning)
Which is better for the money: GPT-5.5 (High) by OpenAI or MiMo-V2.5-Pro (Reasoning) 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 11.0 points higher (37.0 vs 26.0) but costs 15× as much to run the benchmark ($3411 vs $231; flagship vs mid-range cost classes). They are not alternatives at one budget: pick GPT-5.5 (High) when you need intelligence above 26.0, and MiMo-V2.5-Pro (Reasoning) when 26.0 is enough.
| Metric | GPT-5.5 (High) | MiMo-V2.5-Pro (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 37.0 | 26.0 | −29.7% MiMo-V2.5-Pro (Reason… is 29.7% less intelligent |
| Total AA cost (lower is better) | $3,410.76 | $231.08 | −93.2% MiMo-V2.5-Pro (Reason… is 93.2% cheaper |
| End-to-end time (lower is better) | 20.37s | 49.64s | +143.7% MiMo-V2.5-Pro (Reason… is 143.7% slower |
| Price per 1M tokens (in / out) | $5.00 / $30.0 | $0.41 / $1.02 | |
| Input modalities | Text, Image | Text |
MiMo-V2.5-Pro (Reasoning) vs GPT-5.5 (High): 29.7% less intelligence, 93.2% less cost to run the AA benchmark, and 143.7% 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-Pro (Reasoning) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
GPT-5.5 (High)MiMo-V2.5-Pro (Reasoning)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
Compare something else
Agents:
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-5-high/mimo-v2-5-pro · Markdown: /api/v1/compare/gpt-5-5-high/mimo-v2-5-pro?format=md · llms.txt · agent skill