DeepSeek R1 vs DeepSeek V4 Flash
Compare DeepSeek R1 and DeepSeek V4 Flash, both from DeepSeek, context windows of 128K vs 1.0M, tested across 53 shared challenges.
Our Verdict
DeepSeek V4 Flash
DeepSeek R1Runner-up
No community votes yet. On paper, DeepSeek V4 Flash has the edge — newer, bigger context window.
DeepSeek V4 Flash is 7.8x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
DeepSeek R1
Input
$0.55
Output
$2.19
DeepSeek V4 Flash
Input
$0.14
3.9× cheaper
Output
$0.28
7.8× cheaper
DeepSeek V4 Flash is cheaper on both — 3.9× input, 7.8× output
Writing DNA
Style Comparison
Similarity
39%
DeepSeek R1 uses 4.3x more emoji
DeepSeek R1
DeepSeek V4 Flash
62%Vocabulary54%
15wSentence Length17w
0.52Hedging0.52
8.0Bold3.6
5.7Lists2.6
0.04Emoji0.00
0.62Headings0.41
0.28Transitions0.19
Based on 22 + 27 text responses
Research
What we learned reading every model
FAQ
