GPT-5.3 Chat vs Qwen: Qwen3.5 397B A17B
Compare GPT-5.3 Chat by OpenAI against Qwen: Qwen3.5 397B A17B by Qwen, context windows of 128K vs 262K, tested across 53 shared challenges.
Our Verdict
Qwen: Qwen3.5 397B A17B
GPT-5.3 ChatRunner-up
No community votes yet. On paper, Qwen: Qwen3.5 397B A17B has the edge — bigger model tier, bigger context window.
Qwen: Qwen3.5 397B A17B is 3.9x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.3 Chat
Input
$1.75
Output
$14.00
Qwen: Qwen3.5 397B A17B
Input
$0.60
2.9× cheaper
Output
$3.60
3.9× cheaper
Qwen: Qwen3.5 397B A17B is cheaper on both — 2.9× input, 3.9× output
Writing DNA
Style Comparison
Similarity
43%
Qwen: Qwen3.5 397B A17B uses 22.8x more emoji
GPT-5.3 Chat
Qwen: Qwen3.5 397B A17B
59%Vocabulary54%
26wSentence Length14w
0.84Hedging0.39
1.7Bold6.9
6.6Lists4.2
0.00Emoji0.23
0.00Headings0.93
0.25Transitions0.17
Based on 23 + 23 text responses
Research
What we learned reading every model
FAQ
