DeepSeek V4 Flash 0731 vs Gemini 2.5 Flash Preview (thinking)
Compare DeepSeek V4 Flash 0731 by DeepSeek against Gemini 2.5 Flash Preview (thinking) by Google AI, context windows of 1.0M vs 1.0M, tested across 14 shared challenges.
Our Verdict
DeepSeek V4 Flash 0731
Gemini 2.5 Flash Preview (thinking)Runner-up
No community votes yet. On paper, DeepSeek V4 Flash 0731 has the edge — bigger model tier, newer.
DeepSeek V4 Flash 0731 is 12x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
DeepSeek V4 Flash 0731
Input
$0.14
1.2× cheaper
Output
$0.28
12× cheaper
Gemini 2.5 Flash Preview (thinking)
Input
$0.17
Output
$3.50
DeepSeek V4 Flash 0731 is cheaper on both — 1.2× input, 12× output
Writing DNA
Style Comparison
Similarity
55%
DeepSeek V4 Flash 0731 uses 83.0x more headings
DeepSeek V4 Flash 0731
Gemini 2.5 Flash Preview (thinking)
52%Vocabulary53%
18wSentence Length14w
0.38Hedging0.38
5.7Bold4.4
3.4Lists4.1
0.00Emoji0.00
0.83Headings0.00
0.04Transitions0.24
Based on 23 + 7 text responses
Research
What we learned reading every model
FAQ
