GPT-6 Luna (Xhigh) vs MiMo-V2.6-Flash
Which is better for the money: GPT-6 Luna (Xhigh) by OpenAI or MiMo-V2.6-Flash by Xiaomi? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
MiMo-V2.6-Flash scores 3.3 points higher (37.9 vs 34.6) but costs 1.6× as much to run the benchmark ($110 vs $66.8; both mid-range class). Pick MiMo-V2.6-Flash when the extra intelligence is worth the premium, otherwise GPT-6 Luna (Xhigh).
| Metric | GPT-6 Luna (Xhigh) | MiMo-V2.6-Flash | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 34.6 | 37.9 | +9.5% MiMo-V2.6-Flash is 9.5% more intelligent |
| Total AA cost (lower is better) | $66.81 | $109.55 | +64.0% MiMo-V2.6-Flash is 64.0% more expensive |
| End-to-end time (lower is better) | 21.27s | 49.53s | +132.9% MiMo-V2.6-Flash is 132.9% slower |
| Price per 1M tokens (in / out) | $0.10 / $0.50 | $0.14 / $0.28 | |
| Input modalities | Text, Image | Text, Image |
MiMo-V2.6-Flash vs GPT-6 Luna (Xhigh): 9.5% more intelligence, 64.0% more cost to run the AA benchmark, and 132.9% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-6 Luna (Xhigh) is on today's frontier: nothing is both smarter and cheaper.
- MiMo-V2.6-Flash is on today's frontier: nothing is both smarter and cheaper.
GPT-6 Luna (Xhigh)MiMo-V2.6-FlashToday's Pareto frontierOpen-weights frontierEvery other model
Matchup
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