Claude 3 Sonnet vs xAI: Grok 4
Compare Claude 3 Sonnet by Anthropic against xAI: Grok 4 by xAI, tested across 13 shared challenges. Updated June 2026.
Which is better, Claude 3 Sonnet or xAI: Grok 4?
Claude 3 Sonnet and xAI: Grok 4 are both competitive models. Claude 3 Sonnet costs $3/M input tokens vs $3/M for xAI: Grok 4. Compare their real outputs side by side below.
Key Differences Between Claude 3 Sonnet and xAI: Grok 4
Claude 3 Sonnet is made by anthropic while xAI: Grok 4 is from xai. On pricing, Claude 3 Sonnet costs $3/M input tokens vs $3/M for xAI: Grok 4.
API pricing
Per 1M tokens
Claude 3 Sonnet
Input
$3.00
Output
$15.00
xAI: Grok 4
Input
$3.00
Output
$15.00
Our Verdict
Claude 3 Sonnet
xAI: Grok 4
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
Writing DNA
Style Comparison
Similarity
46%
xAI: Grok 4 uses 267.9x more bold
Claude 3 Sonnet
xAI: Grok 4
48%Vocabulary53%
14wSentence Length18w
0.32Hedging0.67
0.0Bold2.7
3.6Lists2.7
0.00Emoji0.07
0.00Headings0.86
0.38Transitions0.04
Based on 4 + 21 text responses
FAQ
