Gemini 3.1 Pro Preview vs Kimi K2.6 (Reasoning)
Which is better for the money: Gemini 3.1 Pro Preview by Google or Kimi K2.6 (Reasoning) by Kimi? 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 2.7 points higher (29.7 vs 27.0) but costs 1.3× as much to run the benchmark ($1935 vs $1528; both premium class). Pick Gemini 3.1 Pro Preview when the extra intelligence is worth the premium, otherwise Kimi K2.6 (Reasoning).
| Metric | Gemini 3.1 Pro Preview | Kimi K2.6 (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 29.7 | 27.0 | −9.1% Kimi K2.6 (Reasoning) is 9.1% less intelligent |
| Total AA cost (lower is better) | $1,935.39 | $1,528.20 | −21.0% Kimi K2.6 (Reasoning) is 21.0% cheaper |
| End-to-end time (lower is better) | 24.32s | 56.90s | +134.0% Kimi K2.6 (Reasoning) is 134.0% slower |
| Price per 1M tokens (in / out) | $2.00 / $12.0 | $0.95 / $4.00 | |
| Input modalities | Text, Image, Speech, Video | Text, Image, Video |
Kimi K2.6 (Reasoning) vs Gemini 3.1 Pro Preview: 9.1% less intelligence, 21.0% less cost to run the AA benchmark, and 134.0% 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.
- Kimi K2.6 (Reasoning) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
Gemini 3.1 Pro PreviewKimi K2.6 (Reasoning)Today's Pareto frontierOpen-weights 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-k2-6 · Markdown: /api/v1/compare/gemini-3-1-pro-preview/kimi-k2-6?format=md · llms.txt · agent skill