GPT-6 Luna (Low) vs MiMo-V2.5
Which is better for the money: GPT-6 Luna (Low) by OpenAI or MiMo-V2.5 by Xiaomi? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
MiMo-V2.5 scores 0.3 points higher (21.8 vs 21.5) but costs 5.8× as much to run the benchmark ($61.9 vs $10.6; mid-range vs budget cost classes). They are not alternatives at one budget: pick MiMo-V2.5 when you need intelligence above 21.5, and GPT-6 Luna (Low) when 21.5 is enough.
| Metric | GPT-6 Luna (Low) | MiMo-V2.5 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 21.5 | 21.8 | +1.4% MiMo-V2.5 is 1.4% more intelligent |
| Total AA cost (lower is better) | $10.63 | $61.93 | +482.6% MiMo-V2.5 is 5.8× more expensive |
| End-to-end time (lower is better) | 6.84s | 66.56s | +873.1% MiMo-V2.5 is 873.1% slower |
| Price per 1M tokens (in / out) | $0.10 / $0.50 | $0.13 / $0.27 | |
| Input modalities | Text, Image | Text, Image |
MiMo-V2.5 vs GPT-6 Luna (Low): 1.4% more intelligence, 482.6% more cost to run the AA benchmark, and 873.1% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-6 Luna (Low) is on today's frontier: nothing is both smarter and cheaper.
- 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-6 Luna (Low)MiMo-V2.5Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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