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Compare AI models: Muse Spark 1.2 Contributor vs GPT-5.6 Luna

  1. Muse Spark 1.2 ContributorMeta
  2. GPT-5.6 LunaOpenAI
ReasoningCodingCost efficiencyContext windowMultimodalTool use
Normalized model capability scores
ModelReasoningCodingCost efficiencyContext windowMultimodalTool use
Muse Spark 1.2 Contributor0/10041/10081/10093/10083/1000/100
GPT-5.6 Luna69/10081/10058/10098/10050/10064/100
Overview
Author
Context length
1M
1.1M
Reasoning
True
True
Input modalities
Text, Image, Video, Pdf, Audio
Text, Image, Pdf
Output modalities
Text
Text
Providers
Pricing
Input
$0.10/ 1M
$0.20/ 1M
Output
$0.20/ 1M
$1.20/ 1M
Cached input
$0.002/ 1M
$0.02/ 1M
MomentumLast 2 mo
Unique users
262K
340K
Completed sessions
321,267,399
2,016,312
Token share
1.92%
0.23%
Tokens
22T+27%
2.7T-51%
AUG 31OCT 25
AUG 31OCT 25
RetentionWeek 1
Returning users
76.7%7.4K user-weeks
56.8%32K user-weeks

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