GPT-5.6 Luna vs Qwen3 Coder Flash
Compare GPT-5.6 Luna by OpenAI against Qwen3 Coder Flash by Qwen, context windows of 1.1M vs 128K, tested across 54 shared challenges.
Our Verdict
GPT-5.6 Luna
Qwen3 Coder FlashRunner-up
No community votes yet. On paper, GPT-5.6 Luna has the edge — newer, bigger context window, major provider backing.
Qwen3 Coder Flash is 4.0x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.6 Luna
Input
$1.00
Output
$6.00
Qwen3 Coder Flash
Input
$0.30
3.3× cheaper
Output
$1.50
4.0× cheaper
Qwen3 Coder Flash is cheaper on both — 3.3× input, 4.0× output
Writing DNA
Style Comparison
Similarity
53%
Qwen3 Coder Flash uses 4.9x more sentence length
GPT-5.6 Luna
Qwen3 Coder Flash
59%Vocabulary60%
19wSentence Length92w
0.84Hedging0.60
2.7Bold6.1
4.5Lists6.2
0.00Emoji0.00
1.20Headings1.64
0.10Transitions0.18
Based on 27 + 22 text responses
Research
What we learned reading every model
FAQ
