Claude Haiku 4.5 vs Z.ai: GLM 5
Compare Claude Haiku 4.5 by Anthropic against Z.ai: GLM 5 by Zhipu AI, context windows of 200K vs 203K, tested across 53 shared challenges.
Our Verdict
Z.ai: GLM 5
Claude Haiku 4.5Runner-up
No community votes yet. On paper, Z.ai: GLM 5 has the edge — bigger model tier, newer.
Too close to call
API pricing
Cost per 1M tokens
Claude Haiku 4.5
Input
$1.00
Output
$5.00
Z.ai: GLM 5
Input
$0.80
1.3× cheaper
Output
$2.56
2.0× cheaper
Z.ai: GLM 5 is cheaper on both — 1.3× input, 2.0× output
Writing DNA
Style Comparison
Similarity
43%
Claude Haiku 4.5 uses 20.4x more emoji
Claude Haiku 4.5
Z.ai: GLM 5
61%Vocabulary54%
47wSentence Length17w
0.64Hedging0.37
5.1Bold6.3
6.3Lists4.7
0.20Emoji0.00
2.46Headings0.60
0.17Transitions0.18
Based on 24 + 22 text responses
Research
What we learned reading every model
FAQ
