GPT OSS 120B vs Kimi K3
Compare GPT OSS 120B by OpenAI against Kimi K3 by Moonshot AI, context windows of 131K vs 1.0M, tested across 53 shared challenges.
Our Verdict
GPT OSS 120B
Kimi K3
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
GPT OSS 120B is 19x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT OSS 120B
Input
$0.18
17× cheaper
Output
$0.80
19× cheaper
Kimi K3
Input
$3.00
Output
$15.00
GPT OSS 120B is cheaper on both — 17× input, 19× output
Writing DNA
Style Comparison
Similarity
52%
Kimi K3 uses 5.1x more emoji
GPT OSS 120B
Kimi K3
52%Vocabulary58%
19wSentence Length21w
0.28Hedging0.46
7.4Bold3.6
1.8Lists3.4
0.15Emoji0.78
0.73Headings0.89
0.17Transitions0.17
Based on 21 + 27 text responses
Research
What we learned reading every model
FAQ
Common questions
Keep exploring
