Claude Sonnet 4 vs OpenAI o4 Mini High
Compare Claude Sonnet 4 by Anthropic against OpenAI o4 Mini High by OpenAI, context windows of 200K vs 200K, tested across 54 shared challenges.
Our Verdict
Claude Sonnet 4
OpenAI o4 Mini HighRunner-up
No community votes yet. On paper, Claude Sonnet 4 has the edge — bigger model tier, newer.
OpenAI o4 Mini High is 3.4x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Claude Sonnet 4
Input
$3.00
Output
$15.00
OpenAI o4 Mini High
Input
$1.10
2.7× cheaper
Output
$4.40
3.4× cheaper
OpenAI o4 Mini High is cheaper on both — 2.7× input, 3.4× output
Writing DNA
Style Comparison
Similarity
42%
Claude Sonnet 4 uses 503.7x more bold
Claude Sonnet 4
OpenAI o4 Mini High
62%Vocabulary70%
111wSentence Length18w
0.40Hedging0.33
5.0Bold0.0
9.3Lists1.3
0.88Emoji0.02
2.16Headings0.00
0.33Transitions0.04
Based on 17 + 14 text responses
Research
What we learned reading every model
FAQ
