OpenAI: GPT-5.6 Luna vs Qwen: Qwen3.5 27B
Compare OpenAI: GPT-5.6 Luna by OpenAI against Qwen: Qwen3.5 27B by Qwen, context windows of 1.1M vs 262K, tested across 53 shared challenges.
Our Verdict
OpenAI: GPT-5.6 Luna
Qwen: Qwen3.5 27BRunner-up
No community votes yet. On paper, OpenAI: GPT-5.6 Luna has the edge — newer, bigger context window, major provider backing.
Too close to call
API pricing
Cost per 1M tokens
OpenAI: GPT-5.6 Luna
Input
$1.00
Output
$6.00
Qwen: Qwen3.5 27B
Input
$0.30
3.3× cheaper
Output
$2.40
2.5× cheaper
Qwen: Qwen3.5 27B is cheaper on both — 3.3× input, 2.5× output
Writing DNA
Style Comparison
Similarity
39%
OpenAI: GPT-5.6 Luna
Qwen: Qwen3.5 27B
59%Vocabulary51%
19wSentence Length15w
0.84Hedging0.32
2.7Bold7.3
4.5Lists4.8
0.00Emoji0.01
1.20Headings0.87
0.10Transitions0.19
Based on 27 + 23 text responses
Research
What we learned reading every model
FAQ
