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GPT-5 Codex vs Qwen: Qwen3.6 Plus Preview (free)

Compare GPT-5 Codex by OpenAI against Qwen: Qwen3.6 Plus Preview (free) by Qwen, tested across 49 shared challenges. Updated March 2026.

Which is better, GPT-5 Codex or Qwen: Qwen3.6 Plus Preview (free)?

GPT-5 Codex and Qwen: Qwen3.6 Plus Preview (free) are both competitive models. Compare their real outputs side by side below.

Key Differences Between GPT-5 Codex and Qwen: Qwen3.6 Plus Preview (free)

GPT-5 Codex is made by openai while Qwen: Qwen3.6 Plus Preview (free) is from qwen.

Our Verdict
GPT-5 Codex
GPT-5 Codex
Qwen: Qwen3.6 Plus Preview (free)
Qwen: Qwen3.6 Plus Preview (free)Runner-up

No community votes yet. On paper, GPT-5 Codex has the edge — bigger model tier, major provider backing.

Too close to call
Writing DNA

Style Comparison

Similarity
100%

Qwen: Qwen3.6 Plus Preview (free) uses 8.1x more emoji

GPT-5 Codex
Qwen: Qwen3.6 Plus Preview (free)
64%Vocabulary63%
17wSentence Length14w
0.38Hedging0.21
2.3Bold3.7
3.5Lists2.3
0.15Emoji1.18
0.49Headings0.77
0.05Transitions0.05
Based on 13 + 27 text responses
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GPT-5 CodexQwen: Qwen3.6 Plus Preview (free)
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