DeepSeek V4 Flash 0420 (High) vs GPT-6 Luna (Max)
Which is better for the money: DeepSeek V4 Flash 0420 (High) by DeepSeek or GPT-6 Luna (Max) 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
GPT-6 Luna (Max) scores 13.7 points higher (38.1 vs 24.4) but costs 1.0× as much to run the benchmark ($122 vs $121; both mid-range class). Pick GPT-6 Luna (Max) when the extra intelligence is worth the premium, otherwise DeepSeek V4 Flash 0420 (High).
| Metric | DeepSeek V4 Flash 0420 (High) | GPT-6 Luna (Max) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 24.4 | 38.1 | +56.1% GPT-6 Luna (Max) is 56.1% more intelligent |
| Total AA cost (lower is better) | $121.20 | $122.05 | +0.7% GPT-6 Luna (Max) is 0.7% more expensive |
| End-to-end time (lower is better) | Not reported | 93.85s | — not comparable |
| Price per 1M tokens (in / out) | $0.11 / $0.23 | $0.10 / $0.50 | |
| Input modalities | Text | Text, Image |
GPT-6 Luna (Max) vs DeepSeek V4 Flash 0420 (High): 56.1% more intelligence, 0.7% more cost to run the AA benchmark, and end-to-end time not fully reported.
Today's Pareto frontier
Against the frontier
- DeepSeek V4 Flash 0420 (High) is off the frontier: at the same or lower cost, MiMo-V2.6-Flash scores 37.90 for $110.
- GPT-6 Luna (Max) is on today's frontier: nothing is both smarter and cheaper.
DeepSeek V4 Flash 0420 (High)GPT-6 Luna (Max)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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