DeepSeek V4 Flash 0420 (Max) vs GPT-5.6 Sol (High)
Which is better for the money: DeepSeek V4 Flash 0420 (Max) by DeepSeek or GPT-5.6 Sol (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-5.6 Sol (High) scores 18.1 points higher (42.3 vs 24.2) but costs 10.0× as much to run the benchmark ($1487 vs $149; premium vs mid-range cost classes). They are not alternatives at one budget: pick GPT-5.6 Sol (High) when you need intelligence above 24.2, and DeepSeek V4 Flash 0420 (Max) when 24.2 is enough.
| Metric | DeepSeek V4 Flash 0420 (Max) | GPT-5.6 Sol (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 24.2 | 42.3 | +74.8% GPT-5.6 Sol (High) is 74.8% more intelligent |
| Total AA cost (lower is better) | $149.48 | $1,487.34 | +895.0% GPT-5.6 Sol (High) is 10.0× more expensive |
| End-to-end time (lower is better) | 116.79s | 13.77s | −88.2% GPT-5.6 Sol (High) is 88.2% faster |
| Price per 1M tokens (in / out) | $0.11 / $0.23 | $4.00 / $20.0 | |
| Input modalities | Text | Text, Image |
GPT-5.6 Sol (High) vs DeepSeek V4 Flash 0420 (Max): 74.8% more intelligence, 895.0% more cost to run the AA benchmark, and 88.2% faster end-to-end.
Today's Pareto frontier
Against the frontier
- DeepSeek V4 Flash 0420 (Max) is off the frontier: at the same or lower cost, GPT-6 Luna (Max) scores 38.10 for $122.
- GPT-5.6 Sol (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
DeepSeek V4 Flash 0420 (Max)GPT-5.6 Sol (High)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-0420/gpt-5-6-sol-high · Markdown: /api/v1/compare/deepseek-v4-flash-0420/gpt-5-6-sol-high?format=md · llms.txt · agent skill