Grok Code Fast 1 vs OpenAI o4-mini
Compare Grok Code Fast 1 by xAI against OpenAI o4-mini by OpenAI, tested across 54 shared challenges.
Our Verdict
Grok Code Fast 1
OpenAI o4-mini
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
API pricing
Cost per 1M tokens
Grok Code Fast 1
Input
$0.20
5.5× cheaper
Output
$1.50
2.9× cheaper
OpenAI o4-mini
Input
$1.10
Output
$4.40
Grok Code Fast 1 is cheaper on both — 5.5× input, 2.9× output
Writing DNA
Style Comparison
Similarity
57%
Grok Code Fast 1 uses 280.1x more bold
Grok Code Fast 1
OpenAI o4-mini
60%Vocabulary73%
17wSentence Length15w
0.97Hedging0.18
2.8Bold0.0
2.5Lists2.1
0.06Emoji0.00
0.89Headings0.00
0.11Transitions0.02
Based on 23 + 10 text responses
Research
What we learned reading every model
FAQ
