Gemini 3.8 Flash (High) vs GPT-6 Luna (Max)
Which is better for the money: Gemini 3.8 Flash (High) by Google or GPT-6 Luna (Max) 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 3.8 Flash (High) scores 2.8 points higher (40.9 vs 38.1) but costs 13× as much to run the benchmark ($1623 vs $122; premium vs mid-range cost classes). They are not alternatives at one budget: pick Gemini 3.8 Flash (High) when you need intelligence above 38.1, and GPT-6 Luna (Max) when 38.1 is enough.
| Metric | Gemini 3.8 Flash (High) | GPT-6 Luna (Max) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 40.9 | 38.1 | −6.8% GPT-6 Luna (Max) is 6.8% less intelligent |
| Total AA cost (lower is better) | $1,622.73 | $122.05 | −92.5% GPT-6 Luna (Max) is 92.5% cheaper |
| End-to-end time (lower is better) | 31.03s | 86.79s | +179.7% GPT-6 Luna (Max) is 179.7% slower |
| Price per 1M tokens (in / out) | $0.75 / $3.75 | $0.10 / $0.50 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
GPT-6 Luna (Max) vs Gemini 3.8 Flash (High): 6.8% less intelligence, 92.5% less cost to run the AA benchmark, and 179.7% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Gemini 3.8 Flash (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- GPT-6 Luna (Max) is on today's frontier: nothing is both smarter and cheaper.
Gemini 3.8 Flash (High)GPT-6 Luna (Max)Today's Pareto frontierEvery other model
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gemini-3-8-flash/gpt-6-luna · Markdown: /api/v1/compare/gemini-3-8-flash/gpt-6-luna?format=md · llms.txt · agent skill