Claude 3 Sonnet vs Claude Sonnet 5
Compare Claude 3 Sonnet and Claude Sonnet 5, both from Anthropic, tested across 13 shared challenges.
Our Verdict
Claude 3 Sonnet
Claude Sonnet 5
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 3 Sonnet
Input
$3.00
Output
$15.00
Claude Sonnet 5
Input
$2.00
1.5× cheaper
Output
$10.00
1.5× cheaper
Claude Sonnet 5 is cheaper on both — 1.5× input, 1.5× output
Writing DNA
Style Comparison
Similarity
38%
Claude Sonnet 5 uses 350.5x more bold
Claude 3 Sonnet
Claude Sonnet 5
48%Vocabulary59%
14wSentence Length35w
0.32Hedging0.53
0.0Bold3.5
3.6Lists3.5
0.00Emoji0.79
0.00Headings1.25
0.38Transitions0.06
Based on 4 + 27 text responses
Research
What we learned reading every model
FAQ
