Gemini 4 Argon (High) vs GPT-6 Luna (Low)
Which is better for the money: Gemini 4 Argon (High) by Google or GPT-6 Luna (Low) by OpenAI? 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
Gemini 4 Argon (High) scores 31.1 points higher (52.6 vs 21.5) but costs 226× as much to run the benchmark ($2407 vs $10.6; flagship vs budget cost classes). They are not alternatives at one budget: pick Gemini 4 Argon (High) when you need intelligence above 21.5, and GPT-6 Luna (Low) when 21.5 is enough.
| Metric | Gemini 4 Argon (High) | GPT-6 Luna (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 52.6 | 21.5 | −59.1% GPT-6 Luna (Low) is 59.1% less intelligent |
| Total AA cost (lower is better) | $2,407.24 | $10.63 | −99.6% GPT-6 Luna (Low) is 99.6% cheaper |
| End-to-end time (lower is better) | 64.75s | 6.80s | −89.5% GPT-6 Luna (Low) is 89.5% faster |
| Price per 1M tokens (in / out) | $2.00 / $10.0 | $0.10 / $0.50 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Luna (Low) vs Gemini 4 Argon (High): 59.1% less intelligence, 99.6% less cost to run the AA benchmark, and 89.5% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Gemini 4 Argon (High) is off the frontier: at the same or lower cost, Claude Opus 5.5 (High, Default Fallback) scores 53.60 for $2172.
- GPT-6 Luna (Low) is on today's frontier: nothing is both smarter and cheaper.
Gemini 4 Argon (High)GPT-6 Luna (Low)Today'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/gemini-4-argon/gpt-6-luna-low · Markdown: /api/v1/compare/gemini-4-argon/gpt-6-luna-low?format=md · llms.txt · agent skill