GLM 5 vs GPT-5.6 Luna Pro
Compare GLM 5 by Zhipu AI against GPT-5.6 Luna Pro by OpenAI, context windows of 203K vs 1.1M, tested across 53 shared challenges.
Our Verdict
GLM 5
GPT-5.6 Luna Pro
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
API pricing
Cost per 1M tokens
GLM 5
Input
$0.80
1.3× cheaper
Output
$2.56
2.3× cheaper
GPT-5.6 Luna Pro
Input
$1.00
Output
$6.00
GLM 5 is cheaper on both — 1.3× input, 2.3× output
Writing DNA
Style Comparison
Similarity
44%
GPT-5.6 Luna Pro uses 53.7x more emoji
GLM 5
GPT-5.6 Luna Pro
54%Vocabulary58%
17wSentence Length18w
0.37Hedging0.81
6.3Bold2.9
4.7Lists5.1
0.00Emoji0.54
0.60Headings1.10
0.18Transitions0.09
Based on 22 + 27 text responses
Research
What we learned reading every model
FAQ
Common questions
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