DeepSeek V4 Flash 0731 vs o3 Mini
Compare DeepSeek V4 Flash 0731 by DeepSeek against o3 Mini by OpenAI, context windows of 1.0M vs 64K, tested across 42 shared challenges.
Our Verdict
DeepSeek V4 Flash 0731
o3 MiniRunner-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
o3 Mini
Input
$1.10
Output
$4.40
DeepSeek V4 Flash 0731 is cheaper on both — 7.9× input, 16× output
Writing DNA
Style Comparison
Similarity
27%
o3 Mini uses 10.4x more transitions
DeepSeek V4 Flash 0731
o3 Mini
52%Vocabulary65%
18wSentence Length17w
0.38Hedging0.74
5.7Bold3.9
3.4Lists1.7
0.00Emoji0.00
0.83Headings0.47
0.04Transitions0.38
Based on 23 + 12 text responses
Research
What we learned reading every model
FAQ
