DeepSeek V4 Flash 0420 (High) vs GPT-6 Luna (High)
Which is better for the money: DeepSeek V4 Flash 0420 (High) by DeepSeek or GPT-6 Luna (High) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Clear winner
Verdict
Pick GPT-6 Luna (High)
GPT-6 Luna (High) vs DeepSeek V4 Flash 0420 (High): 34.8% more intelligence, 60.5% less cost to run the AA benchmark, and end-to-end time not fully reported.
| Metric | DeepSeek V4 Flash 0420 (High) | GPT-6 Luna (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 24.4 | 32.9 | +34.8% GPT-6 Luna (High) is 34.8% more intelligent |
| Total AA cost (lower is better) | $121.20 | $47.85 | −60.5% GPT-6 Luna (High) is 60.5% cheaper |
| End-to-end time (lower is better) | Not reported | 18.94s | — not comparable |
| Price per 1M tokens (in / out) | $0.11 / $0.23 | $0.10 / $0.50 | |
| Input modalities | Text | Text, Image |
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 (High) is on today's frontier: nothing is both smarter and cheaper.
DeepSeek V4 Flash 0420 (High)GPT-6 Luna (High)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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