GPT-5vsSonoma Dusk Alpha
Sonoma Dusk Alpha is cheaper than GPT-5 at $0/M vs $1.25/M input tokens.
| Spec | GPT-5 | Sonoma Dusk Alpha |
|---|---|---|
| Input price | $1.25/M tokens | Free |
| Output price | $10/M tokens | Free |
| Context window | 400K tokens | 2.0M tokens |
| Weights | Closed | — |
| Free API (OpenRouter) | No | No |
| Released | Aug 2025 | Sep 2025 |
Our Verdict
GPT-5
Sonoma Dusk Alpha
Not enough votes to call it. On the specs, nothing separates them.
Too close to call
API pricing
Cost per 1M tokens
GPT-5
Input
$1.25
Output
$10.00
Sonoma Dusk Alpha
Input
$0.000
Output
$0.000
Where to run it
2 hosts
Sonoma Dusk Alpha
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Writing DNA
Style Comparison
Similarity
61%
Sonoma Dusk Alpha uses 11.8x more transitions
GPT-5
Sonoma Dusk Alpha
65%Vocabulary65%
13wSentence Length15w
0.20Hedging0.54
0.2Bold1.2
4.6Lists2.1
0.00Emoji0.00
0.16Headings1.44
0.03Transitions0.33
Based on 16 + 14 text responses
Research
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