MoonshotAI: Kimi K2 0905 vs OpenAI o3
Compare MoonshotAI: Kimi K2 0905 by Moonshot AI against OpenAI o3 by OpenAI, tested across 54 shared challenges.
Our Verdict
MoonshotAI: Kimi K2 0905
OpenAI o3
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
MoonshotAI: Kimi K2 0905 is 16x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
MoonshotAI: Kimi K2 0905
Input
$0.60
17× cheaper
Output
$2.50
16× cheaper
OpenAI o3
Input
$10.00
Output
$40.00
MoonshotAI: Kimi K2 0905 is cheaper on both — 17× input, 16× output
Writing DNA
Style Comparison
Similarity
89%
MoonshotAI: Kimi K2 0905 uses 14.6x more emoji
MoonshotAI: Kimi K2 0905
OpenAI o3
62%Vocabulary68%
19wSentence Length14w
0.17Hedging0.26
3.3Bold0.7
3.4Lists3.0
0.15Emoji0.00
0.83Headings0.38
0.06Transitions0.12
Based on 22 + 16 text responses
Research
What we learned reading every model
FAQ
