DeepSeek V4 Flash Vision (Max) vs GPT-5.6 Luna (Medium)
Which is better for the money: DeepSeek V4 Flash Vision (Max) by DeepSeek or GPT-5.6 Luna (Medium) 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
DeepSeek V4 Flash Vision (Max) scores 9.8 points higher (34.8 vs 25.0) but costs 24× as much to run the benchmark ($1081 vs $44.3; premium vs budget cost classes). They are not alternatives at one budget: pick DeepSeek V4 Flash Vision (Max) when you need intelligence above 25.0, and GPT-5.6 Luna (Medium) when 25.0 is enough.
| Metric | DeepSeek V4 Flash Vision (Max) | GPT-5.6 Luna (Medium) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 34.8 | 25.0 | −28.2% GPT-5.6 Luna (Medium) is 28.2% less intelligent |
| Total AA cost (lower is better) | $1,081.42 | $44.32 | −95.9% GPT-5.6 Luna (Medium) is 95.9% cheaper |
| End-to-end time (lower is better) | 16.00s | 6.19s | −61.3% GPT-5.6 Luna (Medium) is 61.3% faster |
| Price per 1M tokens (in / out) | $0.44 / $1.32 | $0.20 / $1.20 | |
| Input modalities | Text, Image | Text, Image |
GPT-5.6 Luna (Medium) vs DeepSeek V4 Flash Vision (Max): 28.2% less intelligence, 95.9% less cost to run the AA benchmark, and 61.3% faster end-to-end.
Today's Pareto frontier
Against the frontier
- DeepSeek V4 Flash Vision (Max) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
- GPT-5.6 Luna (Medium) is off the frontier: at the same or lower cost, GPT-6 Luna (Medium) scores 29.90 for $31.2.
DeepSeek V4 Flash Vision (Max)GPT-5.6 Luna (Medium)Today's Pareto frontierEvery other model
Matchup
Compare something else
Agents:
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/deepseek-v4-flash-vision/gpt-5-6-luna-medium · Markdown: /api/v1/compare/deepseek-v4-flash-vision/gpt-5-6-luna-medium?format=md · llms.txt · agent skill