GPT-6 Luna (Xhigh) vs MiMo-V2.5
Which is better for the money: GPT-6 Luna (Xhigh) by OpenAI or MiMo-V2.5 by Xiaomi? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
GPT-6 Luna (Xhigh) scores 12.8 points higher (34.6 vs 21.8) but costs 1.1× as much to run the benchmark ($66.8 vs $61.9; both mid-range class). Pick GPT-6 Luna (Xhigh) when the extra intelligence is worth the premium, otherwise MiMo-V2.5.
| Metric | GPT-6 Luna (Xhigh) | MiMo-V2.5 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 34.6 | 21.8 | −37.0% MiMo-V2.5 is 37.0% less intelligent |
| Total AA cost (lower is better) | $66.81 | $61.93 | −7.3% MiMo-V2.5 is 7.3% cheaper |
| End-to-end time (lower is better) | 21.27s | 41.73s | +96.2% MiMo-V2.5 is 96.2% 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 (Xhigh): 37.0% less intelligence, 7.3% less cost to run the AA benchmark, and 96.2% 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-V2.5 is off the frontier: at the same or lower cost, Claude Haiku 5.5 (Medium) scores 34.50 for $56.4.
GPT-6 Luna (Xhigh)MiMo-V2.5Today'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-6-luna-xhigh/mimo-v2-5-0424 · Markdown: /api/v1/compare/gpt-6-luna-xhigh/mimo-v2-5-0424?format=md · llms.txt · agent skill