Gemini 4 Carbon (High) vs GPT-6 Luna (High)
Which is better for the money: Gemini 4 Carbon (High) by Google or GPT-6 Luna (High) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-29.
Trade-off
Verdict
Depends on your budget
Gemini 4 Carbon (High) scores 38.0 points higher (59.4 vs 21.4) but costs 132× as much to run the benchmark ($8240 vs $62.6; flagship vs mid-range cost classes). They are not alternatives at one budget: pick Gemini 4 Carbon (High) when you need intelligence above 21.4, and GPT-6 Luna (High) when 21.4 is enough.
| Metric | Gemini 4 Carbon (High) | GPT-6 Luna (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 59.4 | 21.4 | −64.0% GPT-6 Luna (High) is 64.0% less intelligent |
| Total AA cost (lower is better) | $8,239.69 | $62.58 | −99.2% GPT-6 Luna (High) is 99.2% cheaper |
| End-to-end time (lower is better) | 105.19s | 15.75s | −85.0% GPT-6 Luna (High) is 85.0% faster |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $0.10 / $0.50 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
GPT-6 Luna (High) vs Gemini 4 Carbon (High): 64.0% less intelligence, 99.2% less cost to run the AA benchmark, and 85.0% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Gemini 4 Carbon (High) is on today's frontier: nothing is both smarter and cheaper.
- GPT-6 Luna (High) is on today's frontier: nothing is both smarter and cheaper.
Gemini 4 Carbon (High)GPT-6 Luna (High)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-carbon/gpt-6-luna-high · Markdown: /api/v1/compare/gemini-4-carbon/gpt-6-luna-high?format=md · llms.txt · agent skill