Z.AI: GLM 4.5 Air vs xAI: Grok 4.3
Compare Z.AI: GLM 4.5 Air by Zhipu AI against xAI: Grok 4.3 by xAI, context windows of 128K vs 1.0M, tested across 54 shared challenges.
Our Verdict
xAI: Grok 4.3
Z.AI: GLM 4.5 AirRunner-up
No community votes yet. On paper, xAI: Grok 4.3 has the edge — newer, bigger context window.
Too close to call
API pricing
Cost per 1M tokens
Z.AI: GLM 4.5 Air
Input
$0.20
6.3× cheaper
Output
$1.10
2.3× cheaper
xAI: Grok 4.3
Input
$1.25
Output
$2.50
Z.AI: GLM 4.5 Air is cheaper on both — 6.3× input, 2.3× output
Writing DNA
Style Comparison
Similarity
47%
Z.AI: GLM 4.5 Air uses 9.9x more emoji
Z.AI: GLM 4.5 Air
xAI: Grok 4.3
48%Vocabulary62%
16wSentence Length16w
0.40Hedging0.46
5.4Bold2.3
4.8Lists2.5
0.10Emoji0.00
0.75Headings0.34
0.12Transitions0.14
Based on 15 + 27 text responses
Research
What we learned reading every model
FAQ
