DeepSeek V4 Flash 0731 (Max) vs GPT-6 Luna (Non-reasoning)
Which is better for the money: DeepSeek V4 Flash 0731 (Max) by DeepSeek or GPT-6 Luna (Non-reasoning) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
DeepSeek V4 Flash 0731 (Max) scores 15.8 points higher (34.3 vs 18.5) but costs 10× as much to run the benchmark ($200 vs $19.2; mid-range vs budget cost classes). They are not alternatives at one budget: pick DeepSeek V4 Flash 0731 (Max) when you need intelligence above 18.5, and GPT-6 Luna (Non-reasoning) when 18.5 is enough.
| Metric | DeepSeek V4 Flash 0731 (Max) | GPT-6 Luna (Non-reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 34.3 | 18.5 | −46.1% GPT-6 Luna (Non-reaso… is 46.1% less intelligent |
| Total AA cost (lower is better) | $199.63 | $19.16 | −90.4% GPT-6 Luna (Non-reaso… is 90.4% cheaper |
| End-to-end time (lower is better) | 18.12s | 5.09s | −71.9% GPT-6 Luna (Non-reaso… is 71.9% faster |
| Price per 1M tokens (in / out) | $0.14 / $0.28 | $0.10 / $0.50 | |
| Input modalities | Text | Text, Image |
GPT-6 Luna (Non-reasoning) vs DeepSeek V4 Flash 0731 (Max): 46.1% less intelligence, 90.4% less cost to run the AA benchmark, and 71.9% faster end-to-end.
Today's Pareto frontier
Against the frontier
- DeepSeek V4 Flash 0731 (Max) is off the frontier: at the same or lower cost, Claude Haiku 5.5 (Xhigh) scores 41.20 for $158.
- GPT-6 Luna (Non-reasoning) is off the frontier: at the same or lower cost, GPT-6 Luna (Low) scores 21.50 for $10.6.
DeepSeek V4 Flash 0731 (Max)GPT-6 Luna (Non-reasoning)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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