Claude Sonnet 4.5 vs DeepSeek R1 0528
Compare Claude Sonnet 4.5 by Anthropic against DeepSeek R1 0528 by DeepSeek, context windows of 200K vs 164K, tested across 42 shared challenges.
Our Verdict
Claude Sonnet 4.5
DeepSeek R1 0528
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
Claude Sonnet 4.5
Input
$3.00
Output
$15.00
DeepSeek R1 0528
Input
$0.000
Output
$0.000
Writing DNA
Style Comparison
Similarity
52%
Claude Sonnet 4.5 uses 45.2x more emoji
Claude Sonnet 4.5
DeepSeek R1 0528
64%Vocabulary64%
94wSentence Length10w
0.48Hedging0.30
4.9Bold6.8
8.0Lists4.9
0.45Emoji0.00
1.91Headings0.40
0.07Transitions0.00
Based on 20 + 4 text responses
Research
What we learned reading every model
FAQ
