DeepSeek V4 Pro vs xAI: Grok 4.5
Compare DeepSeek V4 Pro by DeepSeek against xAI: Grok 4.5 by xAI, context windows of 1.0M vs 500K, tested across 54 shared challenges.
Our Verdict
DeepSeek V4 Pro
xAI: Grok 4.5Runner-up
No community votes yet. On paper, DeepSeek V4 Pro has the edge — bigger model tier, bigger context window.
Too close to call
API pricing
Cost per 1M tokens
DeepSeek V4 Pro
Input
$1.74
1.1× cheaper
Output
$3.48
1.7× cheaper
xAI: Grok 4.5
Input
$2.00
Output
$6.00
DeepSeek V4 Pro is cheaper on both — 1.1× input, 1.7× output
Writing DNA
Style Comparison
Similarity
66%
DeepSeek V4 Pro uses 2.7x more transitions
DeepSeek V4 Pro
xAI: Grok 4.5
57%Vocabulary61%
18wSentence Length16w
0.52Hedging0.23
3.3Bold2.5
2.3Lists2.4
0.04Emoji0.09
0.45Headings0.48
0.15Transitions0.06
Based on 27 + 27 text responses
Research
What we learned reading every model
FAQ
