DeepSeek V4 Flash 0420 (High) vs Qwen3.5 9B (Reasoning)
Which is better for the money: DeepSeek V4 Flash 0420 (High) by DeepSeek or Qwen3.5 9B (Reasoning) by Alibaba? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Clear winner
Verdict
Pick DeepSeek V4 Flash 0420 (High)
Qwen3.5 9B (Reasoning) vs DeepSeek V4 Flash 0420 (High): 54.1% less intelligence, 171.3% more cost to run the AA benchmark, and end-to-end time not fully reported.
| Metric | DeepSeek V4 Flash 0420 (High) | Qwen3.5 9B (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 24.4 | 11.2 | −54.1% Qwen3.5 9B (Reasoning) is 54.1% less intelligent |
| Total AA cost (lower is better) | $121.20 | $328.86 | +171.3% Qwen3.5 9B (Reasoning) is 2.7× more expensive |
| End-to-end time (lower is better) | Not reported | 46.17s | — not comparable |
| Price per 1M tokens (in / out) | $0.11 / $0.23 | $0.14 / $0.20 | |
| Input modalities | Text | Text, Image, Video |
Today's Pareto frontier
Against the frontier
- DeepSeek V4 Flash 0420 (High) is off the frontier: at the same or lower cost, MiMo-V2.6-Flash scores 37.90 for $110.
- Qwen3.5 9B (Reasoning) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
DeepSeek V4 Flash 0420 (High)Qwen3.5 9B (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/deepseek-v4-flash-0420-high/qwen3-5-9b · Markdown: /api/v1/compare/deepseek-v4-flash-0420-high/qwen3-5-9b?format=md · llms.txt · agent skill