OpenAI: GPT-5.6 Sol vs Kimi K2.6
Compare OpenAI: GPT-5.6 Sol by OpenAI against Kimi K2.6 by Moonshot AI, context windows of 1.1M vs 262K, tested across 54 shared challenges.
Our Verdict
OpenAI: GPT-5.6 Sol
Kimi K2.6Runner-up
No community votes yet. On paper, OpenAI: GPT-5.6 Sol has the edge — bigger model tier, newer, bigger context window, major provider backing.
Kimi K2.6 is 7.5x cheaper per token — worth considering if cost matters.
Slight edge
API pricing
Cost per 1M tokens
OpenAI: GPT-5.6 Sol
Input
$5.00
Output
$30.00
Kimi K2.6
Input
$0.95
5.3× cheaper
Output
$4.00
7.5× cheaper
Kimi K2.6 is cheaper on both — 5.3× input, 7.5× output
Writing DNA
Style Comparison
Similarity
42%
OpenAI: GPT-5.6 Sol uses 2.1x more hedging
OpenAI: GPT-5.6 Sol
Kimi K2.6
63%Vocabulary57%
15wSentence Length16w
0.79Hedging0.37
3.4Bold4.3
3.8Lists2.0
0.03Emoji0.03
0.95Headings0.53
0.08Transitions0.16
Based on 27 + 27 text responses
Research
What we learned reading every model
FAQ
Common questions
Keep exploring
