GPT-5 Nano vs Qwen3 Coder

Compare GPT-5 Nano by OpenAI against Qwen3 Coder by Qwen, tested across 37 shared challenges. Updated April 2026.

Which is better, GPT-5 Nano or Qwen3 Coder?

GPT-5 Nano and Qwen3 Coder are both competitive models. Compare their real outputs side by side below.

Key Differences Between GPT-5 Nano and Qwen3 Coder

GPT-5 Nano is made by openai while Qwen3 Coder is from qwen.

Our Verdict
GPT-5 Nano
GPT-5 Nano
Qwen3 Coder
Qwen3 Coder

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
100%

Qwen3 Coder uses 473.7x more bold

GPT-5 Nano
Qwen3 Coder
59%Vocabulary61%
25wSentence Length72w
0.23Hedging0.61
0.0Bold4.7
4.2Lists5.6
0.00Emoji0.12
0.00Headings1.43
0.01Transitions0.20
Based on 14 + 22 text responses
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Ask them anything yourself

GPT-5 NanoQwen3 Coder

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
Free preview13 of 58 slides
FAQ

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