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  5. Claude 3 SonnetvsSonoma Dusk Alpha
Updated Sep 2025

Claude 3 SonnetvsSonoma Dusk Alpha

Sonoma Dusk Alpha is cheaper than Claude 3 Sonnet at $0/M vs $3/M input tokens.

Claude 3 Sonnet and Sonoma Dusk Alpha compared across 12 shared prompts
SpecClaude 3 SonnetSonoma Dusk Alpha
Input price$3/M tokensFree
Output price$15/M tokensFree
Context window—2.0M tokens
Free API (OpenRouter)NoNo
ReleasedMar 2024Sep 2025
Our Verdict
Sonoma Dusk Alpha
Sonoma Dusk Alpha
Claude 3 Sonnet
Claude 3 SonnetRunner-up

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

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Claude 3 Sonnet
Input
$3.00
Output
$15.00
Sonoma Dusk Alpha
Input
$0.000
Output
$0.000
Writing DNA

Style Comparison

Similarity
53%

Sonoma Dusk Alpha uses 119.9x more bold

Claude 3 Sonnet
Sonoma Dusk Alpha
48%Vocabulary65%
14wSentence Length15w
0.32Hedging0.54
0.0Bold1.2
3.6Lists2.1
0.00Emoji0.00
0.00Headings1.44
0.38Transitions0.33
Based on 4 + 14 text responses
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