Claude Opus 4 vs Nova Premier 1.0
Compare Claude Opus 4 by Anthropic against Nova Premier 1.0 by Amazon, context windows of 200K vs 1.0M, tested across 50 shared challenges.
Our Verdict
Claude Opus 4
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.
Nova Premier 1.0 is 6.0x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Claude Opus 4
Input
$15.00
Output
$75.00
Nova Premier 1.0
Input
$2.50
6.0× cheaper
Output
$12.50
6.0× cheaper
Nova Premier 1.0 is cheaper on both — 6.0× input, 6.0× output
Writing DNA
Style Comparison
Similarity
65%
Claude Opus 4 uses 11.2x more emoji
Claude Opus 4
Nova Premier 1.0
64%Vocabulary56%
62wSentence Length39w
0.52Hedging0.90
4.4Bold4.3
9.1Lists5.9
0.11Emoji0.00
1.87Headings0.54
0.27Transitions0.21
Based on 16 + 23 text responses
Research
What we learned reading every model
FAQ
