Claude Opus 4.5 vs xAI: Grok 4
Compare Claude Opus 4.5 by Anthropic against xAI: Grok 4 by xAI, in 17 community votes, claude opus 4.5 wins 82% of head-to-head duels, tested across 53 shared challenges.
Web Design: Claude Opus 4.5 wins 92% of votes
Image Generation: Claude Opus 4.5 wins 100% of votes
Our Verdict
Claude Opus 4.5Winner
xAI: Grok 4Runner-up
Pick Claude Opus 4.5. In 17 blind votes, Claude Opus 4.5 wins 82% of the time. That's not luck.
Claude Opus 4.5 particularly excels in Image Generation, Web Design.
Clear winner
API pricing
Cost per 1M tokens
Claude Opus 4.5
Input
—
Output
—
xAI: Grok 4
Input
$3.00
Output
$15.00
Writing DNA
Style Comparison
Similarity
44%
Claude Opus 4.5 uses 3.1x more sentence length
Claude Opus 4.5
xAI: Grok 4
64%Vocabulary53%
55wSentence Length18w
0.86Hedging0.67
5.8Bold2.7
4.5Lists2.7
0.15Emoji0.07
1.59Headings0.86
0.05Transitions0.04
Based on 24 + 21 text responses
Research
What we learned reading every model
FAQ
