GPT-4 vs Grok Code Fast 1
Compare GPT-4 by OpenAI against Grok Code Fast 1 by xAI, context windows of 8K vs 256K, tested across 26 shared challenges.
Our Verdict
GPT-4
Grok Code Fast 1
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Grok Code Fast 1 is 40x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-4
Input
$30.00
Output
$60.00
Grok Code Fast 1
Input
$0.20
150× cheaper
Output
$1.50
40× cheaper
Grok Code Fast 1 is cheaper on both — 150× input, 40× output
Writing DNA
Style Comparison
Similarity
62%
Grok Code Fast 1 uses 6.0x more emoji
GPT-4
Grok Code Fast 1
59%Vocabulary60%
18wSentence Length17w
1.10Hedging0.97
0.8Bold2.8
2.5Lists2.5
0.00Emoji0.06
0.00Headings0.89
0.45Transitions0.11
Based on 15 + 23 text responses
Research
What we learned reading every model
FAQ
