Claude Opus 4.5 vs Qwen3 Coder

Compare Claude Opus 4.5 by Anthropic against Qwen3 Coder by Qwen, in 19 community votes, claude opus 4.5 wins 88% of head-to-head duels, tested across 37 shared challenges. Updated April 2026.

Which is better, Claude Opus 4.5 or Qwen3 Coder?

Claude Opus 4.5 is the better choice overall, winning 88% of 19 blind community votes on Rival. Compare their real outputs side by side below.

Key Differences Between Claude Opus 4.5 and Qwen3 Coder

Claude Opus 4.5 is made by anthropic while Qwen3 Coder is from qwen. In community voting, In 19 community votes, Claude Opus 4.5 wins 88% of head-to-head duels.

In 19 community votes, Claude Opus 4.5 wins 88% of head-to-head duels. Claude Opus 4.5 leads in Web Design, Image Generation, Conversation. Based on blind community voting from the Rival open dataset of 19+ human preference judgments for this pair.

Web Design: Claude Opus 4.5 wins 89% of votes
Image Generation: Claude Opus 4.5 wins 100% of votes
Conversation: Claude Opus 4.5 wins 100% of votes
Reasoning: Claude Opus 4.5 and Qwen3 Coder are tied
Our Verdict
Claude Opus 4.5
Claude Opus 4.5Winner
Qwen3 Coder
Qwen3 CoderRunner-up

Pick Claude Opus 4.5. In 19 blind votes, Claude Opus 4.5 wins 88% of the time. That's not luck.

Claude Opus 4.5 particularly excels in Image Generation, Conversation, Web Design.

Clear winner
Writing DNA

Style Comparison

Similarity
100%

Qwen3 Coder uses 3.9x more transitions

Claude Opus 4.5
Qwen3 Coder
64%Vocabulary61%
55wSentence Length72w
0.86Hedging0.61
5.8Bold4.7
4.5Lists5.6
0.15Emoji0.12
1.59Headings1.43
0.05Transitions0.20
Based on 24 + 22 text responses
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Claude Opus 4.5Qwen3 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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