Gemini 3.1 Pro Preview vs Grok 4.6 (Xhigh)
Which is better for the money: Gemini 3.1 Pro Preview by Google or Grok 4.6 (Xhigh) 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
Grok 4.6 (Xhigh) scores 14.5 points higher (44.2 vs 29.7) but costs 1.2× as much to run the benchmark ($2242 vs $1935; flagship vs premium cost classes). Pick Grok 4.6 (Xhigh) when the extra intelligence is worth the premium, otherwise Gemini 3.1 Pro Preview.
| Metric | Gemini 3.1 Pro Preview | Grok 4.6 (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 29.7 | 44.2 | +48.8% Grok 4.6 (Xhigh) is 48.8% more intelligent |
| Total AA cost (lower is better) | $1,935.39 | $2,241.91 | +15.8% Grok 4.6 (Xhigh) is 15.8% more expensive |
| End-to-end time (lower is better) | 25.04s | 37.86s | +51.2% Grok 4.6 (Xhigh) is 51.2% slower |
| Price per 1M tokens (in / out) | $2.00 / $12.0 | $2.00 / $6.00 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
Grok 4.6 (Xhigh) vs Gemini 3.1 Pro Preview: 48.8% more intelligence, 15.8% more cost to run the AA benchmark, and 51.2% 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 4.6 (Xhigh) is off the frontier: at the same or lower cost, Claude Opus 5.5 (High, Default Fallback) scores 53.60 for $2172.
Gemini 3.1 Pro PreviewGrok 4.6 (Xhigh)Today's Pareto frontierEvery other model
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