OpenAI o3 vs Qwen: Qwen3.5 27B
Compare OpenAI o3 by OpenAI against Qwen: Qwen3.5 27B by Qwen, tested across 53 shared challenges.
Our Verdict
OpenAI o3
Qwen: Qwen3.5 27BRunner-up
No community votes yet. On paper, OpenAI o3 has the edge — bigger model tier, major provider backing.
Qwen: Qwen3.5 27B is 17x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
OpenAI o3
Input
$10.00
Output
$40.00
Qwen: Qwen3.5 27B
Input
$0.30
33× cheaper
Output
$2.40
17× cheaper
Qwen: Qwen3.5 27B is cheaper on both — 33× input, 17× output
Writing DNA
Style Comparison
Similarity
49%
OpenAI o3
Qwen: Qwen3.5 27B
68%Vocabulary51%
14wSentence Length15w
0.26Hedging0.32
0.7Bold7.3
3.0Lists4.8
0.00Emoji0.01
0.38Headings0.87
0.12Transitions0.19
Based on 16 + 23 text responses
Research
What we learned reading every model
FAQ
