GPT-5.6 Terra vs Kimi K2 Thinking
Compare GPT-5.6 Terra by OpenAI against Kimi K2 Thinking by Moonshot AI, context windows of 1.1M vs 262K, tested across 54 shared challenges.
Our Verdict
GPT-5.6 Terra
Kimi K2 Thinking
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Kimi K2 Thinking is 6.0x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.6 Terra
Input
$2.50
Output
$15.00
Kimi K2 Thinking
Input
$0.60
4.2× cheaper
Output
$2.50
6.0× cheaper
Kimi K2 Thinking is cheaper on both — 4.2× input, 6.0× output
Writing DNA
Style Comparison
Similarity
42%
GPT-5.6 Terra uses 2.4x more hedging
GPT-5.6 Terra
Kimi K2 Thinking
57%Vocabulary57%
18wSentence Length26w
0.85Hedging0.36
2.8Bold5.8
4.6Lists6.0
0.00Emoji0.00
1.12Headings0.56
0.06Transitions0.06
Based on 27 + 14 text responses
Research
What we learned reading every model
FAQ
