GPT-6 Luna (Low) vs Solar Mini 4
Which is better for the money: GPT-6 Luna (Low) by OpenAI or Solar Mini 4 by Upstage? 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
Solar Mini 4 scores 2.6 points higher (24.1 vs 21.5) but costs 47× as much to run the benchmark ($502 vs $10.6; premium vs budget cost classes). They are not alternatives at one budget: pick Solar Mini 4 when you need intelligence above 21.5, and GPT-6 Luna (Low) when 21.5 is enough.
| Metric | GPT-6 Luna (Low) | Solar Mini 4 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 21.5 | 24.1 | +12.1% Solar Mini 4 is 12.1% more intelligent |
| Total AA cost (lower is better) | $10.63 | $502.02 | +4622.7% Solar Mini 4 is 47× more expensive |
| End-to-end time (lower is better) | 6.75s | 23.11s | +242.4% Solar Mini 4 is 242.4% slower |
| Price per 1M tokens (in / out) | $0.10 / $0.50 | $0.10 / $0.40 | |
| Input modalities | Text, Image | Text |
Solar Mini 4 vs GPT-6 Luna (Low): 12.1% more intelligence, 4622.7% more cost to run the AA benchmark, and 242.4% 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.
- Solar Mini 4 is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
GPT-6 Luna (Low)Solar Mini 4Today's Pareto frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-6-luna-low/solar-mini4 · Markdown: /api/v1/compare/gpt-6-luna-low/solar-mini4?format=md · llms.txt · agent skill