Gemini 3.1 Pro Preview vs GPT-6 Astra (Xhigh)
Which is better for the money: Gemini 3.1 Pro Preview by Google or GPT-6 Astra (Xhigh) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
GPT-6 Astra (Xhigh) scores 22.7 points higher (52.4 vs 29.7) but costs 2.0× as much to run the benchmark ($3803 vs $1935; flagship vs premium cost classes). Pick GPT-6 Astra (Xhigh) when the extra intelligence is worth the premium, otherwise Gemini 3.1 Pro Preview.
| Metric | Gemini 3.1 Pro Preview | GPT-6 Astra (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 29.7 | 52.4 | +76.4% GPT-6 Astra (Xhigh) is 76.4% more intelligent |
| Total AA cost (lower is better) | $1,935.39 | $3,802.98 | +96.5% GPT-6 Astra (Xhigh) is 96.5% more expensive |
| End-to-end time (lower is better) | 27.94s | 176.59s | +532.0% GPT-6 Astra (Xhigh) is 532.0% slower |
| Price per 1M tokens (in / out) | $2.00 / $12.0 | $10.0 / $50.0 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
GPT-6 Astra (Xhigh) vs Gemini 3.1 Pro Preview: 76.4% more intelligence, 96.5% more cost to run the AA benchmark, and 532.0% 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.
- GPT-6 Astra (Xhigh) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
Gemini 3.1 Pro PreviewGPT-6 Astra (Xhigh)Today's Pareto frontierEvery other model
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gemini-3-1-pro-preview/gpt-6-astra-xhigh · Markdown: /api/v1/compare/gemini-3-1-pro-preview/gpt-6-astra-xhigh?format=md · llms.txt · agent skill