Grok 4.1 FastvsAmazon Nova 2 Lite
Amazon Nova 2 Lite is the newer model, released after Grok 4.1 Fast.
| Spec | Grok 4.1 Fast | Amazon Nova 2 Lite |
|---|---|---|
| Input price | — | $0.5/M tokens |
| Output price | — | $1.5/M tokens |
| Context window | — | 1.0M tokens |
| Weights | — | Closed |
| Free API (OpenRouter) | No | No |
| Released | Nov 2025 | Dec 2025 |
Our Verdict
Grok 4.1 Fast
Amazon Nova 2 LiteRunner-up
Not enough votes to call it. On the specs, Grok 4.1 Fast has the edge: bigger model tier, major provider backing.
Too close to call
API pricing
Cost per 1M tokens
Grok 4.1 Fast
Input
—
Output
—
Amazon Nova 2 Lite
Input
$0.50
Output
$1.50
Where to run it
1 host
Grok 4.1 Fast
No hosts listed on OpenRouter.
Amazon Nova 2 Lite1 host
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Writing DNA
Style Comparison
Similarity
49%
Amazon Nova 2 Lite uses 2.0x more bold
Grok 4.1 Fast
Amazon Nova 2 Lite
69%Vocabulary55%
15wSentence Length17w
0.20Hedging0.38
4.3Bold8.6
3.6Lists3.9
0.97Emoji0.59
0.90Headings1.48
0.12Transitions0.12
Based on 28 + 14 text responses
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