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Compare AI models: Kimi K3 vs GPT-5.6 Luna

  1. Kimi K3MoonshotHollow points use fallbacks · hover for details
  2. GPT-5.6 LunaOpenAI
ReasoningCodingCost efficiencyContext windowMultimodalTool use
Normalized model capability scores
ModelReasoningCodingCost efficiencyContext windowMultimodalTool use
Kimi K3100/100100/10012/10092/10050/10050/100 — Tool calling supported; no comparable benchmark
GPT-5.6 Luna67/10081/10061/10098/10050/10064/100
Overview
Author
Context length
1M
1.1M
Reasoning
True
True
Input modalities
Text, Image, Video
Text, Image, Pdf
Output modalities
Text
Text
Providers
Pricing
Input
$3.00/ 1M
$0.20/ 1M
Output
$15/ 1M
$1.20/ 1M
Cached input
$0.30/ 1M
$0.02/ 1M
MomentumLast 2 mo
Unique users
348K
472K
Completed sessions
788,710
2,207,508
Token share
0.08%
0.44%
Tokens
755B-46%
4.3T+18%
AUG 18OCT 12
AUG 18OCT 12
RetentionWeek 1
Returning users
42%31K user-weeks
58.3%40K user-weeks

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