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Claude Opus 4.5 vs Qwen: Qwen3 Max Thinking

Compare Claude Opus 4.5 by Anthropic against Qwen: Qwen3 Max Thinking by Qwen, tested across 53 shared challenges. Updated April 2026.

Which is better, Claude Opus 4.5 or Qwen: Qwen3 Max Thinking?

Claude Opus 4.5 and Qwen: Qwen3 Max Thinking are both competitive models. Compare their real outputs side by side below.

Key Differences Between Claude Opus 4.5 and Qwen: Qwen3 Max Thinking

Claude Opus 4.5 is made by anthropic while Qwen: Qwen3 Max Thinking is from qwen.

Our Verdict
Claude Opus 4.5
Claude Opus 4.5
Qwen: Qwen3 Max Thinking
Qwen: Qwen3 Max Thinking

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
98%

Qwen: Qwen3 Max Thinking uses 9.0x more emoji

Claude Opus 4.5
Qwen: Qwen3 Max Thinking
64%Vocabulary61%
55wSentence Length15w
0.86Hedging0.23
5.8Bold5.2
4.5Lists3.9
0.15Emoji1.37
1.59Headings1.22
0.05Transitions0.04
Based on 24 + 13 text responses
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Claude Opus 4.5Qwen: Qwen3 Max Thinking

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
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