GPT-4o (Omni) vs Qwen: Qwen3.5 Flash
Compare GPT-4o (Omni) by OpenAI against Qwen: Qwen3.5 Flash by Qwen, context windows of 128K vs 1.0M, tested across 53 shared challenges.
Our Verdict
GPT-4o (Omni)
Qwen: Qwen3.5 Flash
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Qwen: Qwen3.5 Flash is 25x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-4o (Omni)
Input
$2.50
Output
$10.00
Qwen: Qwen3.5 Flash
Input
$0.10
25× cheaper
Output
$0.40
25× cheaper
Qwen: Qwen3.5 Flash is cheaper on both — 25× input, 25× output
Writing DNA
Style Comparison
Similarity
74%
GPT-4o (Omni) uses 2.0x more hedging
GPT-4o (Omni)
Qwen: Qwen3.5 Flash
54%Vocabulary50%
18wSentence Length14w
0.72Hedging0.35
7.3Bold6.9
5.6Lists4.2
0.03Emoji0.03
1.40Headings1.00
0.26Transitions0.15
Based on 24 + 23 text responses
Research
What we learned reading every model
FAQ
