Gemini 3.1 Pro Preview vs Kimi K3.1 Pro
Which is better for the money: Gemini 3.1 Pro Preview by Google or Kimi K3.1 Pro by Kimi? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
Kimi K3.1 Pro scores 25.4 points higher (55.1 vs 29.7) but costs 1.6× as much to run the benchmark ($3117 vs $1935; flagship vs premium cost classes). Pick Kimi K3.1 Pro when the extra intelligence is worth the premium, otherwise Gemini 3.1 Pro Preview.
| Metric | Gemini 3.1 Pro Preview | Kimi K3.1 Pro | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 29.7 | 55.1 | +85.5% Kimi K3.1 Pro is 85.5% more intelligent |
| Total AA cost (lower is better) | $1,935.39 | $3,117.31 | +61.1% Kimi K3.1 Pro is 61.1% more expensive |
| End-to-end time (lower is better) | 24.90s | 42.64s | +71.2% Kimi K3.1 Pro is 71.2% slower |
| Price per 1M tokens (in / out) | $2.00 / $12.0 | $2.00 / $10.0 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
Kimi K3.1 Pro vs Gemini 3.1 Pro Preview: 85.5% more intelligence, 61.1% more cost to run the AA benchmark, and 71.2% 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.
- Kimi K3.1 Pro is on today's frontier: nothing is both smarter and cheaper.
Gemini 3.1 Pro PreviewKimi K3.1 ProToday's Pareto frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gemini-3-1-pro-preview/kimi-k3-1-pro · Markdown: /api/v1/compare/gemini-3-1-pro-preview/kimi-k3-1-pro?format=md · llms.txt · agent skill