DeepSeek V4 Flash 0420 (High) vs GPT-6 Luna (Xhigh)
Which is better for the money: DeepSeek V4 Flash 0420 (High) by DeepSeek or GPT-6 Luna (Xhigh) 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 (Xhigh)
GPT-6 Luna (Xhigh) vs DeepSeek V4 Flash 0420 (High): 41.8% more intelligence, 53.8% less cost to run the AA benchmark, and end-to-end time not fully reported.
| Metric | DeepSeek V4 Flash 0420 (High) | GPT-6 Luna (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 24.4 | 34.6 | +41.8% GPT-6 Luna (Xhigh) is 41.8% more intelligent |
| Total AA cost (lower is better) | $144.48 | $66.81 | −53.8% GPT-6 Luna (Xhigh) is 53.8% cheaper |
| End-to-end time (lower is better) | Not reported | 31.80s | — 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, GPT-6 Luna (Max) scores 38.10 for $122.
- GPT-6 Luna (Xhigh) is on today's frontier: nothing is both smarter and cheaper.
DeepSeek V4 Flash 0420 (High)GPT-6 Luna (Xhigh)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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