K-EXAONE (K-엑사원) vs Stable Diffusion comparison

K-EXAONE (K-엑사원) and Stable Diffusion compared side by side in AI.

CurrencyUSDKRWEUR

What is different

Korean support

K-EXAONE (K-엑사원)Good
Stable DiffusionAverage

Main models

K-EXAONE (K-엑사원)K-EXAONE 2.0 750B-A37B (750B total, 37B active MoE) / FP8/NVFP4 quantized versions / DSpark variant
Stable DiffusionStable Diffusion 3.5(Large/Medium/Turbo) / Stable Image Ultra/Core(API) / SDXL / Stable Audio 3.0

K-EXAONE (K-엑사원)

A 750 billion-parameter Korean open model made by LG AI Research under the government's independent AI foundation model project (the largest in Korea, free for commercial use)

What is good

  • Korea's largest open model at 750B
  • No commercial use restrictions under Apache 2.0
  • 262K long context, strong on the Korean long-text benchmark (Ko-LongBench 89.6)

What could be better

  • Running it yourself needs about 16 H200-class GPUs, so it is hard for individuals
  • LG has no paid API of its own or app for general users yet

K-EXAONE (K-엑사원) official site

Stable Diffusion

A leading open-source image generation model you can install and run on your own computer

What is good

  • Free and open source
  • Install it yourself for unlimited generation
  • Very many community models

What could be better

  • Hard to install and use
  • Needs a good graphics card

Stable Diffusion official site

At a glance

ItemK-EXAONE (K-엑사원)Visit siteStable DiffusionVisit site
Starting priceFreeNot applicableFreeNot applicable
Free tierFreeFree
Korean supportGoodAverage
Main models
  • K-EXAONE 2.0 750B-A37B (750B total, 37B active MoE)
  • FP8/NVFP4 quantized versions
  • DSpark variant
  • Stable Diffusion 3.5(Large/Medium/Turbo)
  • Stable Image Ultra/Core(API)
  • SDXL
  • Stable Audio 3.0
TypeAI servicesAI services
CategoryOpen ModelsImage Generation, Open Models
CompanyLG AI Research (LG AI연구원), South KoreaStability AI, United Kingdom
Plans
  • Model weights free (Apache 2.0, commercial use allowed)
  • Web demo k.exaone.ai
  • Hosted API is pay-as-you-go from outside providers such as FriendliAI (prices set by each provider)
  • Local use free (revenue under $1M)
  • API $0.03 to $0.08 per image
  • Brand Studio $50
  • Enterprise
Pros
  • Korea's largest open model at 750B
  • No commercial use restrictions under Apache 2.0
  • 262K long context, strong on the Korean long-text benchmark (Ko-LongBench 89.6)
  • High safety rating in the Korean context
  • Reasoning mode can be turned on and off, tool calling supported
  • Free and open source
  • Install it yourself for unlimited generation
  • Very many community models
Cons
  • Running it yourself needs about 16 H200-class GPUs, so it is hard for individuals
  • LG has no paid API of its own or app for general users yet
  • Text only
  • LG itself says it is only a 'starting point'
  • Hard to install and use
  • Needs a good graphics card

Prices and benefits may change. Check the official site before you pay.

Prices converted at 1 USD = ₩1,327.84 (2026-10-20). Original price shown in brackets. Taxes as listed by each provider.

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