GPT-4.1 vs MoonshotAI: Kimi K2 0905
Compare GPT-4.1 by OpenAI against MoonshotAI: Kimi K2 0905 by Moonshot AI, context windows of 1.0M vs 262K, tested across 54 shared challenges.
Our Verdict
GPT-4.1
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 3.2x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-4.1
Input
$2.00
Output
$8.00
MoonshotAI: Kimi K2 0905
Input
$0.60
3.3× cheaper
Output
$2.50
3.2× cheaper
MoonshotAI: Kimi K2 0905 is cheaper on both — 3.3× input, 3.2× output
Writing DNA
Style Comparison
Similarity
59%
GPT-4.1 uses 2.7x more bold
GPT-4.1
MoonshotAI: Kimi K2 0905
58%Vocabulary62%
19wSentence Length19w
0.38Hedging0.17
9.0Bold3.3
6.1Lists3.4
0.24Emoji0.15
1.01Headings0.83
0.07Transitions0.06
Based on 25 + 22 text responses
Research
What we learned reading every model
FAQ
