Kimi K3.1 Pro vs Qwen3.8-Flash-Next
Which is better for the money: Kimi K3.1 Pro by Kimi or Qwen3.8-Flash-Next by Alibaba? 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 15.3 points higher (55.1 vs 39.8) but costs 8.6× as much to run the benchmark ($3117 vs $363; flagship vs mid-range cost classes). They are not alternatives at one budget: pick Kimi K3.1 Pro when you need intelligence above 39.8, and Qwen3.8-Flash-Next when 39.8 is enough.
| Metric | Kimi K3.1 Pro | Qwen3.8-Flash-Next | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 55.1 | 39.8 | −27.8% Qwen3.8-Flash-Next is 27.8% less intelligent |
| Total AA cost (lower is better) | $3,117.31 | $362.72 | −88.4% Qwen3.8-Flash-Next is 88.4% cheaper |
| End-to-end time (lower is better) | 42.64s | 50.57s | +18.6% Qwen3.8-Flash-Next is 18.6% slower |
| Price per 1M tokens (in / out) | $2.00 / $10.0 | $0.15 / $0.47 | |
| Input modalities | Text, Image | Text, Image, Video |
Qwen3.8-Flash-Next vs Kimi K3.1 Pro: 27.8% less intelligence, 88.4% less cost to run the AA benchmark, and 18.6% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Kimi K3.1 Pro is on today's frontier: nothing is both smarter and cheaper.
- Qwen3.8-Flash-Next is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
Kimi K3.1 ProQwen3.8-Flash-NextToday's Pareto frontierOpen-weights frontierEvery other model
Matchup
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