MoonshotAI: Kimi K3 vs OpenAI o4 Mini High
Compare MoonshotAI: Kimi K3 by Moonshot AI against OpenAI o4 Mini High by OpenAI, context windows of 1.0M vs 200K, tested across 53 shared challenges.
Our Verdict
MoonshotAI: Kimi K3
OpenAI o4 Mini HighRunner-up
No community votes yet. On paper, MoonshotAI: Kimi K3 has the edge — bigger model tier, newer, bigger context window.
OpenAI o4 Mini High is 3.4x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
MoonshotAI: Kimi K3
Input
$3.00
Output
$15.00
OpenAI o4 Mini High
Input
$1.10
2.7× cheaper
Output
$4.40
3.4× cheaper
OpenAI o4 Mini High is cheaper on both — 2.7× input, 3.4× output
Writing DNA
Style Comparison
Similarity
50%
MoonshotAI: Kimi K3 uses 360.1x more bold
MoonshotAI: Kimi K3
OpenAI o4 Mini High
58%Vocabulary70%
21wSentence Length18w
0.46Hedging0.33
3.6Bold0.0
3.4Lists1.3
0.78Emoji0.02
0.89Headings0.00
0.17Transitions0.04
Based on 27 + 14 text responses
Research
What we learned reading every model
FAQ
