Claude Opus 4.1 vs Grok Code Fast 1
Compare Claude Opus 4.1 by Anthropic against Grok Code Fast 1 by xAI, in 75 community votes, claude opus 4.1 wins 85% of head-to-head duels, context windows of 200K vs 256K, tested across 53 shared challenges.
Web Design: Claude Opus 4.1 wins 97% of votes
Image Generation: Claude Opus 4.1 wins 88% of votes
Conversation: Claude Opus 4.1 and Grok Code Fast 1 are tied
Analysis: Claude Opus 4.1 wins 60% of votes
Reasoning: Claude Opus 4.1 wins 75% of votes
Our Verdict
Claude Opus 4.1Winner
Grok Code Fast 1Runner-up
Pick Claude Opus 4.1. In 75 blind votes, Claude Opus 4.1 wins 85% of the time. That's not luck.
Claude Opus 4.1 particularly excels in Web Design, Image Generation, Reasoning. Grok Code Fast 1 is 50x 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
Grok Code Fast 1
Input
$0.20
75× cheaper
Output
$1.50
50× cheaper
Grok Code Fast 1 is cheaper on both — 75× input, 50× output
Writing DNA
Style Comparison
Similarity
46%
Claude Opus 4.1 uses 6.4x more emoji
Claude Opus 4.1
Grok Code Fast 1
61%Vocabulary60%
87wSentence Length17w
0.54Hedging0.97
5.1Bold2.8
6.7Lists2.5
0.38Emoji0.06
1.68Headings0.89
0.13Transitions0.11
Based on 17 + 23 text responses
Research
What we learned reading every model
FAQ
