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Compare AI models: GPT-5.6 Luna vs GLM-5.3

  1. GPT-5.6 LunaOpenAI
  2. GLM-5.3Zhipu
ReasoningCodingCost efficiencyContext windowMultimodalTool use
Normalized model capability scores
ModelReasoningCodingCost efficiencyContext windowMultimodalTool use
GPT-5.6 Luna67/10081/10063/10098/10050/10064/100
GLM-5.383/100100/10034/10080/1000/100100/100
Overview
Author
Context length
1.1M
1M
Reasoning
True
True
Input modalities
Text, Image, Pdf
Text
Output modalities
Text
Text
Providers
Pricing
Input
$0.20/ 1M
$1.40/ 1M
Output
$1.20/ 1M
$4.40/ 1M
Cached input
$0.02/ 1M
$0.26/ 1M
MomentumLast 2 mo
Unique users
603K
327K
Completed sessions
2,087,194
612,497
Token share
0.71%
0.16%
Tokens
6.4T+407%
1.4T+100%
AUG 8OCT 2
AUG 8OCT 2
RetentionWeek 1
Returning users
55%50K user-weeks
53.6%21K user-weeks

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