DeepSeek V4 Flash 0731 (Max) vs GPT-5.5 (High)
Which is better for the money: DeepSeek V4 Flash 0731 (Max) by DeepSeek or GPT-5.5 (High) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
GPT-5.5 (High) scores 2.7 points higher (37.0 vs 34.3) but costs 17× as much to run the benchmark ($3411 vs $200; flagship vs mid-range cost classes). They are not alternatives at one budget: pick GPT-5.5 (High) when you need intelligence above 34.3, and DeepSeek V4 Flash 0731 (Max) when 34.3 is enough.
| Metric | DeepSeek V4 Flash 0731 (Max) | GPT-5.5 (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 34.3 | 37.0 | +7.9% GPT-5.5 (High) is 7.9% more intelligent |
| Total AA cost (lower is better) | $199.63 | $3,410.76 | +1608.5% GPT-5.5 (High) is 17× more expensive |
| End-to-end time (lower is better) | 17.91s | 19.79s | +10.5% GPT-5.5 (High) is 10.5% slower |
| Price per 1M tokens (in / out) | $0.14 / $0.28 | $5.00 / $30.0 | |
| Input modalities | Text | Text, Image |
GPT-5.5 (High) vs DeepSeek V4 Flash 0731 (Max): 7.9% more intelligence, 1608.5% more cost to run the AA benchmark, and 10.5% slower end-to-end.
Today's Pareto frontier
Against the frontier
- DeepSeek V4 Flash 0731 (Max) is off the frontier: at the same or lower cost, Claude Haiku 5.5 (Xhigh) scores 41.20 for $158.
- GPT-5.5 (High) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
DeepSeek V4 Flash 0731 (Max)GPT-5.5 (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/gpt-5-5-high · Markdown: /api/v1/compare/deepseek-v4-flash/gpt-5-5-high?format=md · llms.txt · agent skill