DeepSeek V4 Flash 0420 (High) vs GPT-5.6 Luna (Max)
Which is better for the money: DeepSeek V4 Flash 0420 (High) by DeepSeek or GPT-5.6 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-5.6 Luna (Max) scores 12.9 points higher (37.3 vs 24.4) but costs 2.6× as much to run the benchmark ($320 vs $121; both mid-range class). Pick GPT-5.6 Luna (Max) when the extra intelligence is worth the premium, otherwise DeepSeek V4 Flash 0420 (High).
| Metric | DeepSeek V4 Flash 0420 (High) | GPT-5.6 Luna (Max) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 24.4 | 37.3 | +52.9% GPT-5.6 Luna (Max) is 52.9% more intelligent |
| Total AA cost (lower is better) | $121.20 | $319.93 | +164.0% GPT-5.6 Luna (Max) is 2.6× more expensive |
| End-to-end time (lower is better) | Not reported | 114.06s | — not comparable |
| Price per 1M tokens (in / out) | $0.11 / $0.23 | $0.20 / $1.20 | |
| Input modalities | Text | Text, Image |
GPT-5.6 Luna (Max) vs DeepSeek V4 Flash 0420 (High): 52.9% more intelligence, 164.0% 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-5.6 Luna (Max) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
DeepSeek V4 Flash 0420 (High)GPT-5.6 Luna (Max)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/deepseek-v4-flash-0420-high/gpt-5-6-luna · Markdown: /api/v1/compare/deepseek-v4-flash-0420-high/gpt-5-6-luna?format=md · llms.txt · agent skill