MoonshotAI: Kimi K2 0905 vs OpenAI o4-mini
Compare MoonshotAI: Kimi K2 0905 by Moonshot AI against OpenAI o4-mini by OpenAI, tested across 54 shared challenges. Updated May 2026.
Which is better, MoonshotAI: Kimi K2 0905 or OpenAI o4-mini?
MoonshotAI: Kimi K2 0905 and OpenAI o4-mini are both competitive models. MoonshotAI: Kimi K2 0905 costs $0.6/M input tokens vs $1.1/M for OpenAI o4-mini. Compare their real outputs side by side below.
Key Differences Between MoonshotAI: Kimi K2 0905 and OpenAI o4-mini
MoonshotAI: Kimi K2 0905 is made by moonshotai while OpenAI o4-mini is from openai. On pricing, MoonshotAI: Kimi K2 0905 costs $0.6/M input tokens vs $1.1/M for OpenAI o4-mini.
API pricing
Per 1M tokens
MoonshotAI: Kimi K2 0905
Input
$0.60
1.8× cheaper
Output
$2.50
1.8× cheaper
OpenAI o4-mini
Input
$1.10
Output
$4.40
MoonshotAI: Kimi K2 0905 is cheaper on both — 1.8× input, 1.8× output
Our Verdict
MoonshotAI: Kimi K2 0905
OpenAI o4-miniRunner-up
No community votes yet. On paper, MoonshotAI: Kimi K2 0905 has the edge — bigger model tier, newer, bigger context window.
Too close to call
Writing DNA
Style Comparison
Similarity
51%
MoonshotAI: Kimi K2 0905 uses 334.8x more bold
MoonshotAI: Kimi K2 0905
OpenAI o4-mini
62%Vocabulary73%
19wSentence Length15w
0.17Hedging0.18
3.3Bold0.0
3.4Lists2.1
0.15Emoji0.00
0.83Headings0.00
0.06Transitions0.02
Based on 22 + 10 text responses
FAQ
