Gemini 3.1 Pro Preview vs GPT-5.5 (High)
Which is better for the money: Gemini 3.1 Pro Preview by Google 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 7.3 points higher (37.0 vs 29.7) but costs 1.8× as much to run the benchmark ($3411 vs $1935; flagship vs premium cost classes). Pick GPT-5.5 (High) when the extra intelligence is worth the premium, otherwise Gemini 3.1 Pro Preview.
| Metric | Gemini 3.1 Pro Preview | GPT-5.5 (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 29.7 | 37.0 | +24.6% GPT-5.5 (High) is 24.6% more intelligent |
| Total AA cost (lower is better) | $1,935.39 | $3,410.76 | +76.2% GPT-5.5 (High) is 76.2% more expensive |
| End-to-end time (lower is better) | 24.47s | 19.56s | −20.1% GPT-5.5 (High) is 20.1% faster |
| Price per 1M tokens (in / out) | $2.00 / $12.0 | $5.00 / $30.0 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
GPT-5.5 (High) vs Gemini 3.1 Pro Preview: 24.6% more intelligence, 76.2% more cost to run the AA benchmark, and 20.1% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Gemini 3.1 Pro Preview is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- GPT-5.5 (High) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
Gemini 3.1 Pro PreviewGPT-5.5 (High)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/gemini-3-1-pro-preview/gpt-5-5-high · Markdown: /api/v1/compare/gemini-3-1-pro-preview/gpt-5-5-high?format=md · llms.txt · agent skill