Claude Opus 4.1 vs xAI: Grok 4
Compare Claude Opus 4.1 by Anthropic against xAI: Grok 4 by xAI, in 17 community votes, claude opus 4.1 wins 71% of head-to-head duels, context windows of 200K vs 256K, tested across 53 shared challenges.
Image Generation: Claude Opus 4.1 and xAI: Grok 4 are tied
Web Design: Claude Opus 4.1 wins 100% of votes
Analysis: Claude Opus 4.1 and xAI: Grok 4 are tied
Our Verdict
Claude Opus 4.1Winner
xAI: Grok 4Runner-up
Pick Claude Opus 4.1. In 17 blind votes, Claude Opus 4.1 wins 71% of the time. That's not luck.
Claude Opus 4.1 particularly excels in Web Design. xAI: Grok 4 is 5.0x cheaper per token — worth considering if cost matters.
Clear winner
API pricing
Cost per 1M tokens
Claude Opus 4.1
Input
$15.00
Output
$75.00
xAI: Grok 4
Input
$3.00
5.0× cheaper
Output
$15.00
5.0× cheaper
xAI: Grok 4 is cheaper on both — 5.0× input, 5.0× output
Writing DNA
Style Comparison
Similarity
45%
Claude Opus 4.1 uses 5.5x more emoji
Claude Opus 4.1
xAI: Grok 4
61%Vocabulary53%
87wSentence Length18w
0.54Hedging0.67
5.1Bold2.7
6.7Lists2.7
0.38Emoji0.07
1.68Headings0.86
0.13Transitions0.04
Based on 17 + 21 text responses
Research
What we learned reading every model
FAQ
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