GPT-5.6 Luna (Xhigh) vs MiMo-V2.5-Pro (Reasoning)
Which is better for the money: GPT-5.6 Luna (Xhigh) 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 2026-10-26.
Clear winner
Verdict
Pick GPT-5.6 Luna (Xhigh)
MiMo-V2.5-Pro (Reasoning) vs GPT-5.6 Luna (Xhigh): 24.9% less intelligence, 28.9% more cost to run the AA benchmark, and 38.0% slower end-to-end.
| Metric | GPT-5.6 Luna (Xhigh) | MiMo-V2.5-Pro (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 34.6 | 26.0 | −24.9% MiMo-V2.5-Pro (Reason… is 24.9% less intelligent |
| Total AA cost (lower is better) | $179.33 | $231.08 | +28.9% MiMo-V2.5-Pro (Reason… is 28.9% more expensive |
| End-to-end time (lower is better) | 35.85s | 49.48s | +38.0% MiMo-V2.5-Pro (Reason… is 38.0% slower |
| Price per 1M tokens (in / out) | $0.20 / $1.20 | $0.41 / $1.02 | |
| Input modalities | Text, Image | Text |
Today's Pareto frontier
Against the frontier
- GPT-5.6 Luna (Xhigh) is off the frontier: at the same or lower cost, Claude Haiku 5.5 (Xhigh) scores 41.20 for $158.
- 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-5.6 Luna (Xhigh)MiMo-V2.5-Pro (Reasoning)Today'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-5-6-luna-xhigh/mimo-v2-5-pro · Markdown: /api/v1/compare/gpt-5-6-luna-xhigh/mimo-v2-5-pro?format=md · llms.txt · agent skill