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  5. Qwen3.5 FlashvsSonoma Dusk Alpha
Updated Feb 2026

Qwen3.5 FlashvsSonoma Dusk Alpha

Sonoma Dusk Alpha is cheaper than Qwen3.5 Flash at $0/M vs $0.1/M input tokens.

Qwen3.5 Flash and Sonoma Dusk Alpha compared across 34 shared prompts
SpecQwen3.5 FlashSonoma Dusk Alpha
Input price$0.1/M tokensFree
Output price$0.4/M tokensFree
Context window1.0M tokens2.0M tokens
WeightsClosed—
Free API (OpenRouter)NoNo
ReleasedFeb 2026Sep 2025
Our Verdict
Sonoma Dusk Alpha
Sonoma Dusk Alpha
Qwen3.5 Flash
Qwen3.5 FlashRunner-up

Not enough votes to call it. On the specs, Sonoma Dusk Alpha has the edge: bigger model tier, bigger context window.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Qwen3.5 Flash
Input
$0.10
Output
$0.40
Sonoma Dusk Alpha
Input
$0.000
Output
$0.000
Where to run it

1 host

Qwen3.5 Flash1 host
HostInOutContextUptime
Alibaba Cloud$0.07 in·$0.26 out·1M·100% up
Sonoma Dusk Alpha

No hosts listed on OpenRouter.

Per million tokens. Prices and uptime via OpenRouter, checked 11 Sep 2026.

Writing DNA

Style Comparison

Similarity
35%

Qwen3.5 Flash uses 2.5x more emoji

Qwen3.5 Flash
Sonoma Dusk Alpha
50%Vocabulary65%
14wSentence Length15w
0.35Hedging0.54
6.9Bold1.2
4.2Lists2.1
0.03Emoji0.00
1.00Headings1.44
0.15Transitions0.33
Based on 23 + 14 text responses
Research

What we learned reading every model

FAQ

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