GPT-5.1-Codex-Mini vs Kimi K2.7 Code
Compare GPT-5.1-Codex-Mini by OpenAI against Kimi K2.7 Code by Moonshot AI, context windows of 400K vs 262K, tested across 54 shared challenges.
Our Verdict
GPT-5.1-Codex-Mini
Kimi K2.7 Code
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.1-Codex-Mini
Input
$1.50
Output
$6.00
Kimi K2.7 Code
Input
$0.95
1.6× cheaper
Output
$4.00
1.5× cheaper
Kimi K2.7 Code is cheaper on both — 1.6× input, 1.5× output
Writing DNA
Style Comparison
Similarity
65%
Kimi K2.7 Code uses 9.9x more headings
GPT-5.1-Codex-Mini
Kimi K2.7 Code
65%Vocabulary57%
20wSentence Length19w
0.56Hedging0.51
3.3Bold4.7
3.4Lists3.3
0.00Emoji0.00
0.08Headings0.76
0.05Transitions0.05
Based on 13 + 27 text responses
Research
What we learned reading every model
FAQ
