Grok 4.20 Beta vs Nova Premier 1.0
Compare Grok 4.20 Beta by xAI against Nova Premier 1.0 by Amazon, context windows of 2.0M vs 1.0M, tested across 50 shared challenges.
Our Verdict
Grok 4.20 Beta
Nova Premier 1.0Runner-up
No community votes yet. On paper, Grok 4.20 Beta has the edge — bigger model tier, newer, bigger context window, major provider backing.
Slight edge
API pricing
Cost per 1M tokens
Grok 4.20 Beta
Input
$2.00
1.3× cheaper
Output
$6.00
2.1× cheaper
Nova Premier 1.0
Input
$2.50
Output
$12.50
Grok 4.20 Beta is cheaper on both — 1.3× input, 2.1× output
Writing DNA
Style Comparison
Similarity
50%
Nova Premier 1.0 uses 2.5x more hedging
Grok 4.20 Beta
Nova Premier 1.0
57%Vocabulary56%
20wSentence Length39w
0.35Hedging0.90
4.2Bold4.3
3.7Lists5.9
0.00Emoji0.00
0.62Headings0.54
0.14Transitions0.21
Based on 23 + 23 text responses
Research
What we learned reading every model
FAQ
