Gemini 3.1 Pro Preview vs Qwen3.5 397B A17B (Reasoning)
Which is better for the money: Gemini 3.1 Pro Preview by Google or Qwen3.5 397B A17B (Reasoning) by Alibaba? 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
Gemini 3.1 Pro Preview scores 11.3 points higher (29.7 vs 18.4) but costs 2.1× as much to run the benchmark ($1935 vs $941; both premium class). Pick Gemini 3.1 Pro Preview when the extra intelligence is worth the premium, otherwise Qwen3.5 397B A17B (Reasoning).
| Metric | Gemini 3.1 Pro Preview | Qwen3.5 397B A17B (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 29.7 | 18.4 | −38.0% Qwen3.5 397B A17B (Re… is 38.0% less intelligent |
| Total AA cost (lower is better) | $1,935.39 | $940.97 | −51.4% Qwen3.5 397B A17B (Re… is 51.4% cheaper |
| End-to-end time (lower is better) | 24.98s | 65.10s | +160.6% Qwen3.5 397B A17B (Re… is 160.6% slower |
| Price per 1M tokens (in / out) | $2.00 / $12.0 | $0.60 / $3.60 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
Qwen3.5 397B A17B (Reasoning) vs Gemini 3.1 Pro Preview: 38.0% less intelligence, 51.4% less cost to run the AA benchmark, and 160.6% 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.
- Qwen3.5 397B A17B (Reasoning) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
Gemini 3.1 Pro PreviewQwen3.5 397B A17B (Reasoning)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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