Grok Code Fast 1 vs MoonshotAI: Kimi K3
Compare Grok Code Fast 1 by xAI against MoonshotAI: Kimi K3 by Moonshot AI, context windows of 256K vs 1.0M, tested across 54 shared challenges.
Our Verdict
MoonshotAI: Kimi K3
Grok Code Fast 1Runner-up
No community votes yet. On paper, MoonshotAI: Kimi K3 has the edge — bigger model tier, newer, bigger context window.
Grok Code Fast 1 is 10x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Grok Code Fast 1
Input
$0.20
15× cheaper
Output
$1.50
10× cheaper
MoonshotAI: Kimi K3
Input
$3.00
Output
$15.00
Grok Code Fast 1 is cheaper on both — 15× input, 10× output
Writing DNA
Style Comparison
Similarity
49%
MoonshotAI: Kimi K3 uses 13.1x more emoji
Grok Code Fast 1
MoonshotAI: Kimi K3
60%Vocabulary58%
17wSentence Length21w
0.97Hedging0.46
2.8Bold3.6
2.5Lists3.4
0.06Emoji0.78
0.89Headings0.89
0.11Transitions0.17
Based on 23 + 27 text responses
Research
What we learned reading every model
FAQ
