xAI: Grok 4 Fast (free) vs Nova Premier 1.0
Compare xAI: Grok 4 Fast (free) by xAI against Nova Premier 1.0 by Amazon, context windows of 2.0M vs 1.0M, tested across 34 shared challenges.
Our Verdict
xAI: Grok 4 Fast (free)
Nova Premier 1.0
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
API pricing
Cost per 1M tokens
xAI: Grok 4 Fast (free)
Input
$0.000
Output
$0.000
Nova Premier 1.0
Input
$2.50
Output
$12.50
Writing DNA
Style Comparison
Similarity
46%
Nova Premier 1.0 uses 3.1x more bold
xAI: Grok 4 Fast (free)
Nova Premier 1.0
65%Vocabulary56%
13wSentence Length39w
0.56Hedging0.90
1.4Bold4.3
2.5Lists5.9
0.00Emoji0.00
1.58Headings0.54
0.28Transitions0.21
Based on 14 + 23 text responses
Research
What we learned reading every model
FAQ
