Z.ai: GLM 5.1 vs Qwen Plus 0728
Compare Z.ai: GLM 5.1 by Z-ai against Qwen Plus 0728 by Qwen, context windows of 203K vs 1.0M, tested across 53 shared challenges.
Our Verdict
Z.ai: GLM 5.1
Qwen Plus 0728
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 is 3.7x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Z.ai: GLM 5.1
Input
$1.40
Output
$4.40
Qwen Plus 0728
Input
$0.40
3.5× cheaper
Output
$1.20
3.7× cheaper
Qwen Plus 0728 is cheaper on both — 3.5× input, 3.7× output
Writing DNA
Style Comparison
Similarity
26%
Qwen Plus 0728 uses 67.5x more emoji
Z.ai: GLM 5.1
Qwen Plus 0728
54%Vocabulary55%
18wSentence Length20w
0.31Hedging0.43
3.6Bold5.9
2.6Lists4.1
0.00Emoji0.68
0.43Headings0.84
0.11Transitions0.16
Based on 27 + 22 text responses
Research
What we learned reading every model
FAQ
