Z.AI: GLM 4.6 vs xAI: Grok 4.5
Compare Z.AI: GLM 4.6 by Zhipu AI against xAI: Grok 4.5 by xAI, context windows of 203K vs 500K, tested across 54 shared challenges.
Our Verdict
Z.AI: GLM 4.6
xAI: Grok 4.5
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Z.AI: GLM 4.6 is 3.4x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Z.AI: GLM 4.6
Input
$0.40
5.0× cheaper
Output
$1.75
3.4× cheaper
xAI: Grok 4.5
Input
$2.00
Output
$6.00
Z.AI: GLM 4.6 is cheaper on both — 5.0× input, 3.4× output
Writing DNA
Style Comparison
Similarity
44%
Z.AI: GLM 4.6 uses 2.1x more bold
Z.AI: GLM 4.6
xAI: Grok 4.5
52%Vocabulary61%
14wSentence Length16w
0.29Hedging0.23
5.2Bold2.5
3.2Lists2.4
0.18Emoji0.09
0.57Headings0.48
0.09Transitions0.06
Based on 22 + 27 text responses
Research
What we learned reading every model
FAQ
