DeepSeek V4.1 Flash (Non-reasoning) vs GPT-5.6 Luna (High)
Which is better for the money: DeepSeek V4.1 Flash (Non-reasoning) 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 2026-10-26.
Clear winner
Verdict
Pick GPT-5.6 Luna (High)
GPT-5.6 Luna (High) vs DeepSeek V4.1 Flash (Non-reasoning): 30.0% more intelligence, 44.2% less cost to run the AA benchmark, and 474.2% slower end-to-end.
| Metric | DeepSeek V4.1 Flash (Non-reasoning) | GPT-5.6 Luna (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 24.7 | 32.1 | +30.0% GPT-5.6 Luna (High) is 30.0% more intelligent |
| Total AA cost (lower is better) | $193.84 | $108.15 | −44.2% GPT-5.6 Luna (High) is 44.2% cheaper |
| End-to-end time (lower is better) | 2.91s | 16.71s | +474.2% GPT-5.6 Luna (High) is 474.2% slower |
| Price per 1M tokens (in / out) | $0.30 / $1.20 | $0.20 / $1.20 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- DeepSeek V4.1 Flash (Non-reasoning) is off the frontier: at the same or lower cost, GPT-6.1 Terra (Medium) scores 41.30 for $175.
- 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 V4.1 Flash (Non-reasoning)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-v4-1-flash-non-reasoning/gpt-5-6-luna-high · Markdown: /api/v1/compare/deepseek-v4-1-flash-non-reasoning/gpt-5-6-luna-high?format=md · llms.txt · agent skill