GPT-5 vs Grok Code Fast 1
Compare GPT-5 by OpenAI against Grok Code Fast 1 by xAI, in 175 community votes, gpt-5 wins 78% of head-to-head duels, context windows of 400K vs 256K, tested across 52 shared challenges.
Reasoning: GPT-5 wins 67% of votes
Image Generation: GPT-5 wins 95% of votes
Web Design: GPT-5 wins 89% of votes
Conversation: Grok Code Fast 1 wins 69% of votes
Analysis: Grok Code Fast 1 wins 60% of votes
Our Verdict
GPT-5Winner
Grok Code Fast 1Runner-up
Pick GPT-5. In 175 blind votes, GPT-5 wins 78% of the time. That's not luck.
Pick GPT-5 for Image Generation, Web Design, Reasoning. Pick Grok Code Fast 1 for Conversation, Analysis. Grok Code Fast 1 is 6.7x cheaper per token — worth considering if cost matters.
Clear winner
API pricing
Cost per 1M tokens
GPT-5
Input
$1.25
Output
$10.00
Grok Code Fast 1
Input
$0.20
6.3× cheaper
Output
$1.50
6.7× cheaper
Grok Code Fast 1 is cheaper on both — 6.3× input, 6.7× output
Writing DNA
Style Comparison
Similarity
56%
Grok Code Fast 1 uses 6.0x more emoji
GPT-5
Grok Code Fast 1
65%Vocabulary60%
13wSentence Length17w
0.20Hedging0.97
0.2Bold2.8
4.6Lists2.5
0.00Emoji0.06
0.16Headings0.89
0.03Transitions0.11
Based on 16 + 23 text responses
Research
What we learned reading every model
FAQ
