DeepSeek V3 (Dec '24) vs GPT-5.5 (High)
Which is better for the money: DeepSeek V3 (Dec '24) by DeepSeek or GPT-5.5 (High) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Trade-off
Verdict
Depends on your budget
GPT-5.5 (High) scores 28.5 points higher (37.0 vs 8.5) but costs 134× as much to run the benchmark ($3411 vs $25.4; flagship vs budget cost classes). They are not alternatives at one budget: pick GPT-5.5 (High) when you need intelligence above 8.5, and DeepSeek V3 (Dec '24) when 8.5 is enough.
| Metric | DeepSeek V3 (Dec '24) | GPT-5.5 (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 8.5 | 37.0 | +335.3% GPT-5.5 (High) is 4.4× more intelligent |
| Total AA cost (lower is better) | $25.37 | $3,410.76 | +13344.1% GPT-5.5 (High) is 134× more expensive |
| End-to-end time (lower is better) | 11.84s | 19.79s | +67.1% GPT-5.5 (High) is 67.1% slower |
| Price per 1M tokens (in / out) | $0.32 / $0.89 | $5.00 / $30.0 | |
| Input modalities | Text | Text, Image |
GPT-5.5 (High) vs DeepSeek V3 (Dec '24): 335.3% more intelligence, 13344.1% more cost to run the AA benchmark, and 67.1% slower end-to-end.
Today's Pareto frontier
Against the frontier
- DeepSeek V3 (Dec '24) is off the frontier: at the same or lower cost, GPT-6 Luna (Low) scores 21.50 for $10.6.
- GPT-5.5 (High) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
DeepSeek V3 (Dec '24)GPT-5.5 (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-v3/gpt-5-5-high · Markdown: /api/v1/compare/deepseek-v3/gpt-5-5-high?format=md · llms.txt · agent skill