Claude Sonnet 4.5 vs Qwen Plus 0728 (thinking)
Compare Claude Sonnet 4.5 by Anthropic against Qwen Plus 0728 (thinking) by Qwen, context windows of 200K vs 1.0M, tested across 30 shared challenges.
Our Verdict
Claude Sonnet 4.5
Qwen Plus 0728 (thinking)
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Qwen Plus 0728 (thinking) is 3.8x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Claude Sonnet 4.5
Input
$3.00
Output
$15.00
Qwen Plus 0728 (thinking)
Input
$0.40
7.5× cheaper
Output
$4.00
3.8× cheaper
Qwen Plus 0728 (thinking) is cheaper on both — 7.5× input, 3.8× output
Writing DNA
Style Comparison
Similarity
52%
Claude Sonnet 4.5 uses 6.4x more sentence length
Claude Sonnet 4.5
Qwen Plus 0728 (thinking)
64%Vocabulary54%
94wSentence Length15w
0.48Hedging0.36
4.9Bold7.0
8.0Lists4.6
0.45Emoji0.34
1.91Headings0.94
0.07Transitions0.09
Based on 20 + 18 text responses
Research
What we learned reading every model
FAQ
