Claude Sonnet 4 vs OpenAI o4-mini
Compare Claude Sonnet 4 by Anthropic against OpenAI o4-mini by OpenAI, in 11 community votes, claude sonnet 4 wins 67% of head-to-head duels, tested across 54 shared challenges.
Web Design: Claude Sonnet 4 wins 67% of votes
Image Generation: Claude Sonnet 4 wins 100% of votes
Reasoning: Claude Sonnet 4 and OpenAI o4-mini are tied
Our Verdict
Claude Sonnet 4Winner
OpenAI o4-miniRunner-up
Pick Claude Sonnet 4. In 11 blind votes, Claude Sonnet 4 wins 67% of the time. That's not luck.
Claude Sonnet 4 particularly excels in Image Generation, Web Design. OpenAI o4-mini is 3.4x cheaper per token — worth considering if cost matters.
Clear winner
API pricing
Cost per 1M tokens
Claude Sonnet 4
Input
$3.00
Output
$15.00
OpenAI o4-mini
Input
$1.10
2.7× cheaper
Output
$4.40
3.4× cheaper
OpenAI o4-mini is cheaper on both — 2.7× input, 3.4× output
Writing DNA
Style Comparison
Similarity
43%
Claude Sonnet 4 uses 503.7x more bold
Claude Sonnet 4
OpenAI o4-mini
62%Vocabulary73%
111wSentence Length15w
0.40Hedging0.18
5.0Bold0.0
9.3Lists2.1
0.88Emoji0.00
2.16Headings0.00
0.33Transitions0.02
Based on 17 + 10 text responses
Research
What we learned reading every model
FAQ
