GPT-5.3-Codex vs Qwen Plus 0728
Compare GPT-5.3-Codex by OpenAI against Qwen Plus 0728 by Qwen, context windows of 400K vs 1.0M, tested across 53 shared challenges.
Our Verdict
GPT-5.3-Codex
Qwen Plus 0728Runner-up
No community votes yet. On paper, GPT-5.3-Codex has the edge — bigger model tier, newer, major provider backing.
Qwen Plus 0728 is 12x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.3-Codex
Input
$1.75
Output
$14.00
Qwen Plus 0728
Input
$0.40
4.4× cheaper
Output
$1.20
12× cheaper
Qwen Plus 0728 is cheaper on both — 4.4× input, 12× output
Writing DNA
Style Comparison
Similarity
66%
Qwen Plus 0728 uses 5.9x more transitions
GPT-5.3-Codex
Qwen Plus 0728
65%Vocabulary55%
23wSentence Length20w
0.51Hedging0.43
6.5Bold5.9
6.2Lists4.1
0.16Emoji0.68
1.90Headings0.84
0.03Transitions0.16
Based on 23 + 22 text responses
Research
What we learned reading every model
FAQ
