DeepSeek V4 Flash 0731 vs OpenAI o4 Mini High
Compare DeepSeek V4 Flash 0731 by DeepSeek against OpenAI o4 Mini High by OpenAI, context windows of 1.0M vs 200K, tested across 42 shared challenges.
Our Verdict
DeepSeek V4 Flash 0731
OpenAI o4 Mini HighRunner-up
No community votes yet. On paper, DeepSeek V4 Flash 0731 has the edge — bigger model tier, newer, bigger context window.
DeepSeek V4 Flash 0731 is 16x cheaper per token — worth considering if cost matters.
Slight edge
API pricing
Cost per 1M tokens
DeepSeek V4 Flash 0731
Input
$0.14
7.9× cheaper
Output
$0.28
16× cheaper
OpenAI o4 Mini High
Input
$1.10
Output
$4.40
DeepSeek V4 Flash 0731 is cheaper on both — 7.9× input, 16× output
Writing DNA
Style Comparison
Similarity
40%
DeepSeek V4 Flash 0731 uses 568.3x more bold
DeepSeek V4 Flash 0731
OpenAI o4 Mini High
52%Vocabulary70%
18wSentence Length18w
0.38Hedging0.33
5.7Bold0.0
3.4Lists1.3
0.00Emoji0.02
0.83Headings0.00
0.04Transitions0.04
Based on 23 + 14 text responses
Research
What we learned reading every model
FAQ
