Compare AI models: Kimi K3 vs GPT-5.6 Luna

Kimi K3MoonshotHollow points use fallbacks · hover for details
GPT-5.6 LunaOpenAI

ReasoningCodingCost efficiencyContext windowMultimodalTool use

Normalized model capability scores
Model	Reasoning	Coding	Cost efficiency	Context window	Multimodal	Tool use
Kimi K3	100/100	100/100	11/100	93/100	50/100	50/100 — Tool calling supported; no comparable benchmark
GPT-5.6 Luna	69/100	81/100	57/100	98/100	50/100	64/100

Overview

Author

Moonshot

OpenAI

Context length

1.1M

Reasoning

True

Input modalities

Text, Image, Video

Text, Image, Pdf

Output modalities

Text

Providers

Moonshot

OpenAI

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

253K

356K

Completed sessions

759,663

2,043,327

Token share

0.05%

0.26%

Tokens

570B-67%

2.9T-45%

AUG 28OCT 22

RetentionWeek 1

Returning users

42.1%24K user-weeks

56.8%32K user-weeks

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