GPT-4.1vsSonoma Sky Alpha
Sonoma Sky Alpha is cheaper than GPT-4.1 at $0/M vs $2/M input tokens.
| Spec | GPT-4.1 | Sonoma Sky Alpha |
|---|---|---|
| Input price | $2/M tokens | Free |
| Output price | $8/M tokens | Free |
| Context window | 1.0M tokens | 2.0M tokens |
| Weights | Closed | — |
| Free API (OpenRouter) | No | No |
| Released | Apr 2025 | Sep 2025 |
Our Verdict
GPT-4.1
Sonoma Sky Alpha
Not enough votes to call it. On the specs, nothing separates them.
Too close to call
API pricing
Cost per 1M tokens
GPT-4.1
Input
$2.00
Output
$8.00
Sonoma Sky Alpha
Input
$0.000
Output
$0.000
Where to run it
2 hosts
Sonoma Sky Alpha
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Writing DNA
Style Comparison
Similarity
47%
GPT-4.1 uses 5.5x more bold
GPT-4.1
Sonoma Sky Alpha
58%Vocabulary62%
19wSentence Length16w
0.49Hedging0.41
8.8Bold1.6
5.8Lists2.8
0.22Emoji0.13
1.01Headings1.42
0.10Transitions0.06
Based on 27 + 14 text responses
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