DeepSeek V4 Flash 0731 (Max) vs GPT-5.6 Sol (Xhigh)
Which is better for the money: DeepSeek V4 Flash 0731 (Max) by DeepSeek or GPT-5.6 Sol (Xhigh) 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
GPT-5.6 Sol (Xhigh) scores 9.7 points higher (44.0 vs 34.3) but costs 10× as much to run the benchmark ($2082 vs $200; flagship vs mid-range cost classes). They are not alternatives at one budget: pick GPT-5.6 Sol (Xhigh) 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-5.6 Sol (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 34.3 | 44.0 | +28.3% GPT-5.6 Sol (Xhigh) is 28.3% more intelligent |
| Total AA cost (lower is better) | $199.63 | $2,082.28 | +943.1% GPT-5.6 Sol (Xhigh) is 10× more expensive |
| End-to-end time (lower is better) | 18.04s | 37.27s | +106.6% GPT-5.6 Sol (Xhigh) is 106.6% slower |
| Price per 1M tokens (in / out) | $0.14 / $0.28 | $4.00 / $20.0 | |
| Input modalities | Text | Text, Image |
GPT-5.6 Sol (Xhigh) vs DeepSeek V4 Flash 0731 (Max): 28.3% more intelligence, 943.1% more cost to run the AA benchmark, and 106.6% 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-5.6 Sol (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
DeepSeek V4 Flash 0731 (Max)GPT-5.6 Sol (Xhigh)Today's Pareto frontierOpen-weights 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/gpt-5-6-sol-xhigh · Markdown: /api/v1/compare/deepseek-v4-flash/gpt-5-6-sol-xhigh?format=md · llms.txt · agent skill