Claude Opus 4 vs xAI: Grok 4
Compare Claude Opus 4 by Anthropic against xAI: Grok 4 by xAI, in 61 community votes, claude opus 4 wins 80% of head-to-head duels, context windows of 200K vs 256K, tested across 53 shared challenges.
Web Design: Claude Opus 4 wins 84% of votes
Image Generation: Claude Opus 4 wins 80% of votes
Reasoning: Claude Opus 4 wins 67% of votes
Analysis: Claude Opus 4 wins 75% of votes
Our Verdict
Claude Opus 4Winner
xAI: Grok 4Runner-up
Pick Claude Opus 4. In 61 blind votes, Claude Opus 4 wins 80% of the time. That's not luck.
Claude Opus 4 particularly excels in Web Design, Image Generation, Analysis. 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
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
59%
Claude Opus 4 uses 6.2x more transitions
Claude Opus 4
xAI: Grok 4
64%Vocabulary53%
62wSentence Length18w
0.52Hedging0.67
4.4Bold2.7
9.1Lists2.7
0.11Emoji0.07
1.87Headings0.86
0.27Transitions0.04
Based on 16 + 21 text responses
Research
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