DeepSeek V4 Flash 0731 vs Grok 4.20 Beta
Compare DeepSeek V4 Flash 0731 by DeepSeek against Grok 4.20 Beta by xAI, context windows of 1.0M vs 2.0M, tested across 42 shared challenges.
Our Verdict
Grok 4.20 Beta
DeepSeek V4 Flash 0731Runner-up
No community votes yet. On paper, Grok 4.20 Beta has the edge — bigger model tier, bigger context window.
DeepSeek V4 Flash 0731 is 21x 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
14× cheaper
Output
$0.28
21× cheaper
Grok 4.20 Beta
Input
$2.00
Output
$6.00
DeepSeek V4 Flash 0731 is cheaper on both — 14× input, 21× output
Writing DNA
Style Comparison
Similarity
53%
Grok 4.20 Beta uses 3.8x more transitions
DeepSeek V4 Flash 0731
Grok 4.20 Beta
52%Vocabulary57%
18wSentence Length20w
0.38Hedging0.35
5.7Bold4.2
3.4Lists3.7
0.00Emoji0.00
0.83Headings0.62
0.04Transitions0.14
Based on 23 + 23 text responses
Research
What we learned reading every model
FAQ
