GPT-5 Codex
Nothing here. The model returned empty. We stared at it for a while.
GPT-5 Codex vs Qwen: Qwen3.5 397B A17B
Compare GPT-5 Codex by OpenAI against Qwen: Qwen3.5 397B A17B by Qwen, tested across 49 shared challenges. Updated April 2026.
Which is better, GPT-5 Codex or Qwen: Qwen3.5 397B A17B?
GPT-5 Codex and Qwen: Qwen3.5 397B A17B are both competitive models. Compare their real outputs side by side below.
Key Differences Between GPT-5 Codex and Qwen: Qwen3.5 397B A17B
GPT-5 Codex is made by openai while Qwen: Qwen3.5 397B A17B is from qwen.
Our Verdict
GPT-5 Codex
Qwen: Qwen3.5 397B A17B
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
Writing DNA
Style Comparison
Similarity
99%
Qwen: Qwen3.5 397B A17B uses 3.1x more transitions
GPT-5 Codex
Qwen: Qwen3.5 397B A17B
64%Vocabulary54%
17wSentence Length14w
0.38Hedging0.39
2.3Bold6.9
3.5Lists4.2
0.15Emoji0.23
0.49Headings0.93
0.05Transitions0.17
Based on 13 + 23 text responses
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