DeepSeek V4 Flash 0731 vs xAI: Grok 4.5
Compare DeepSeek V4 Flash 0731 by DeepSeek against xAI: Grok 4.5 by xAI, context windows of 1.0M vs 500K, tested across 42 shared challenges.
Our Verdict
DeepSeek V4 Flash 0731
xAI: Grok 4.5
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
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
xAI: Grok 4.5
Input
$2.00
Output
$6.00
DeepSeek V4 Flash 0731 is cheaper on both — 14× input, 21× output
Writing DNA
Style Comparison
Similarity
41%
xAI: Grok 4.5 uses 9.0x more emoji
DeepSeek V4 Flash 0731
xAI: Grok 4.5
52%Vocabulary61%
18wSentence Length16w
0.38Hedging0.23
5.7Bold2.5
3.4Lists2.4
0.00Emoji0.09
0.83Headings0.48
0.04Transitions0.06
Based on 23 + 27 text responses
Research
What we learned reading every model
FAQ
