DeepSeek V4 Flash 0420 (High) vs GPT-5.6 Luna (High)
Which is better for the money: DeepSeek V4 Flash 0420 (High) by DeepSeek or GPT-5.6 Luna (High) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.
Clear winner
Verdict
Pick GPT-5.6 Luna (High)
GPT-5.6 Luna (High) vs DeepSeek V4 Flash 0420 (High): 31.6% more intelligence, 25.1% less cost to run the AA benchmark, and end-to-end time not fully reported.
| Metric | DeepSeek V4 Flash 0420 (High) | GPT-5.6 Luna (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 24.4 | 32.1 | +31.6% GPT-5.6 Luna (High) is 31.6% more intelligent |
| Total AA cost (lower is better) | $144.48 | $108.15 | −25.1% GPT-5.6 Luna (High) is 25.1% cheaper |
| End-to-end time (lower is better) | Not reported | 16.69s | — not comparable |
| Price per 1M tokens (in / out) | $0.11 / $0.23 | $0.20 / $1.20 | |
| 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-5.6 Luna (High) is off the frontier: at the same or lower cost, Claude Haiku 5.5 (High) scores 37.80 for $94.1.
DeepSeek V4 Flash 0420 (High)GPT-5.6 Luna (High)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-high · Markdown: /api/v1/compare/deepseek-v4-flash-0420-high/gpt-5-6-luna-high?format=md · llms.txt · agent skill