Claude Opus 4 vs Qwen: Qwen3.5 Plus 2026-04-20
Compare Claude Opus 4 by Anthropic against Qwen: Qwen3.5 Plus 2026-04-20 by Qwen, context windows of 200K vs 1.0M, tested across 51 shared challenges.
Our Verdict
Claude Opus 4
Qwen: Qwen3.5 Plus 2026-04-20
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Qwen: Qwen3.5 Plus 2026-04-20 is 31x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Claude Opus 4
Input
$15.00
Output
$75.00
Qwen: Qwen3.5 Plus 2026-04-20
Input
$0.40
38× cheaper
Output
$2.40
31× cheaper
Qwen: Qwen3.5 Plus 2026-04-20 is cheaper on both — 38× input, 31× output
Writing DNA
Style Comparison
Similarity
41%
Qwen: Qwen3.5 Plus 2026-04-20 uses 13.7x more emoji
Claude Opus 4
Qwen: Qwen3.5 Plus 2026-04-20
64%Vocabulary59%
62wSentence Length15w
0.52Hedging0.28
4.4Bold4.4
9.1Lists2.5
0.11Emoji1.53
1.87Headings0.76
0.27Transitions0.04
Based on 16 + 27 text responses
Research
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