GPT-5.4 vs Qwen3.5 9B
Compare GPT-5.4 by OpenAI against Qwen3.5 9B by Qwen, context windows of 1.1M vs 262K, tested across 51 shared challenges.
Our Verdict
GPT-5.4
Qwen3.5 9BRunner-up
No community votes yet. On paper, GPT-5.4 has the edge — bigger model tier, bigger context window, major provider backing.
Qwen3.5 9B is 100x cheaper per token — worth considering if cost matters.
Slight edge
API pricing
Cost per 1M tokens
GPT-5.4
Input
$2.50
Output
$15.00
Qwen3.5 9B
Input
$0.10
25× cheaper
Output
$0.15
100× cheaper
Qwen3.5 9B is cheaper on both — 25× input, 100× output
Writing DNA
Style Comparison
Similarity
55%
Qwen3.5 9B uses 6.3x more transitions
GPT-5.4
Qwen3.5 9B
54%Vocabulary47%
28wSentence Length15w
0.69Hedging0.41
4.1Bold6.9
8.1Lists4.8
0.00Emoji0.00
1.84Headings0.91
0.02Transitions0.12
Based on 22 + 21 text responses
Research
What we learned reading every model
FAQ
