Grok 4.5 vs Nova Premier 1.0
Compare Grok 4.5 by xAI against Nova Premier 1.0 by Amazon, context windows of 500K vs 1.0M, tested across 50 shared challenges.
Our Verdict
Grok 4.5
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
Grok 4.5
Input
$2.00
1.3× cheaper
Output
$6.00
2.1× cheaper
Nova Premier 1.0
Input
$2.50
Output
$12.50
Grok 4.5 is cheaper on both — 1.3× input, 2.1× output
Writing DNA
Style Comparison
Similarity
38%
Grok 4.5 uses 9.0x more emoji
Grok 4.5
Nova Premier 1.0
61%Vocabulary56%
16wSentence Length39w
0.23Hedging0.90
2.5Bold4.3
2.4Lists5.9
0.09Emoji0.00
0.48Headings0.54
0.06Transitions0.21
Based on 27 + 23 text responses
Research
What we learned reading every model
FAQ
Common questions
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