GPT-4o (Omni) vs MoonshotAI: Kimi K2 0905
Compare GPT-4o (Omni) by OpenAI against MoonshotAI: Kimi K2 0905 by Moonshot AI, context windows of 128K vs 262K, tested across 54 shared challenges.
Our Verdict
GPT-4o (Omni)
MoonshotAI: Kimi K2 0905
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 4.0x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-4o (Omni)
Input
$2.50
Output
$10.00
MoonshotAI: Kimi K2 0905
Input
$0.60
4.2× cheaper
Output
$2.50
4.0× cheaper
MoonshotAI: Kimi K2 0905 is cheaper on both — 4.2× input, 4.0× output
Writing DNA
Style Comparison
Similarity
30%
MoonshotAI: Kimi K2 0905 uses 5.8x more emoji
GPT-4o (Omni)
MoonshotAI: Kimi K2 0905
54%Vocabulary62%
18wSentence Length19w
0.72Hedging0.17
7.3Bold3.3
5.6Lists3.4
0.03Emoji0.15
1.40Headings0.83
0.26Transitions0.06
Based on 24 + 22 text responses
Research
What we learned reading every model
FAQ
