Claude Sonnet 4.5 vs xAI: Grok 4
Compare Claude Sonnet 4.5 by Anthropic against xAI: Grok 4 by xAI, in 10 community votes, claude sonnet 4.5 wins 90% of head-to-head duels, context windows of 200K vs 256K, tested across 42 shared challenges.
Web Design: Claude Sonnet 4.5 wins 80% of votes
Image Generation: Claude Sonnet 4.5 wins 100% of votes
Our Verdict
Claude Sonnet 4.5Winner
xAI: Grok 4Runner-up
Pick Claude Sonnet 4.5. In 10 blind votes, Claude Sonnet 4.5 wins 90% of the time. That's not luck.
Claude Sonnet 4.5 particularly excels in Image Generation, Web Design.
Clear winner
API pricing
Cost per 1M tokens
Claude Sonnet 4.5
Input
$3.00
Output
$15.00
xAI: Grok 4
Input
$3.00
Output
$15.00
Writing DNA
Style Comparison
Similarity
38%
Claude Sonnet 4.5 uses 6.4x more emoji
Claude Sonnet 4.5
xAI: Grok 4
64%Vocabulary53%
94wSentence Length18w
0.48Hedging0.67
4.9Bold2.7
8.0Lists2.7
0.45Emoji0.07
1.91Headings0.86
0.07Transitions0.04
Based on 20 + 21 text responses
Research
What we learned reading every model
FAQ
