Gemini 3.1 Pro Preview vs Grok 4.3 (High)
Which is better for the money: Gemini 3.1 Pro Preview by Google or Grok 4.3 (High) by SpaceXAI? 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
Gemini 3.1 Pro Preview scores 4.8 points higher (29.7 vs 24.9) but costs 5.3× as much to run the benchmark ($1935 vs $363; premium vs mid-range cost classes). They are not alternatives at one budget: pick Gemini 3.1 Pro Preview when you need intelligence above 24.9, and Grok 4.3 (High) when 24.9 is enough.
| Metric | Gemini 3.1 Pro Preview | Grok 4.3 (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 29.7 | 24.9 | −16.2% Grok 4.3 (High) is 16.2% less intelligent |
| Total AA cost (lower is better) | $1,935.39 | $363.24 | −81.2% Grok 4.3 (High) is 81.2% cheaper |
| End-to-end time (lower is better) | 24.47s | 28.87s | +18.0% Grok 4.3 (High) is 18.0% slower |
| Price per 1M tokens (in / out) | $2.00 / $12.0 | $1.25 / $2.50 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
Grok 4.3 (High) vs Gemini 3.1 Pro Preview: 16.2% less intelligence, 81.2% less cost to run the AA benchmark, and 18.0% slower 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.
- Grok 4.3 (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
Gemini 3.1 Pro PreviewGrok 4.3 (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/grok-4-3 · Markdown: /api/v1/compare/gemini-3-1-pro-preview/grok-4-3?format=md · llms.txt · agent skill