OtherVerified

Reviewed and published by trentmaziarz, April 22, 2026. Discovered and drafted by our automated research pipeline.

Krafton integrated an on-device small language model into its life simulation game inZOI to power 'Smart Zoi' characters — AI-driven non-player characters that form their own thoughts, adjust their behavior based on experiences, and interact with players and each other in lifelike ways. The feature was included as an experimental option at inZOI's early access launch in March 2025.

Details

Krafton partnered with NVIDIA to build 'Smart Zoi' using NVIDIA ACE technology and an on-device Small Language Model (SLM). Unlike traditional rule-based NPCs with scripted behavior, Smart Zois process personality traits, situational context, and accumulated life experiences to generate dynamic decisions. The system runs entirely on the player's local device (no cloud connection required), supporting data privacy and low latency. Players can optionally enable this experimental feature.

Products affected

inZOI

Sources & Evidence

Company Disclosure

Company DisclosureVerified

inZOI on Steam

Steam / Krafton·Mar 2025

https://store.steampowered.com/app/2456740/inZOI/

Company DisclosureVerified

[CES 2025] KRAFTON SHOWCASED AI MODEL 'CPC' BUILT WITH NVIDIA ACE

Krafton Newsroom·Jan 2025

https://www.krafton.com/en/news/press/ces-2025-krafton-showcased-ai-model-cpc-built-with-nvidia-ace/

News Article

Krafton and Nvidia team up to create smarter AI characters for PUBG and inZOI

GamesBeat·Jan 2025

https://gamesbeat.com/krafton-and-nvidia-team-up-to-create-smarter-ai-characters-for-pubg-and-inzoi/

News Article

Inzoi is creating a newfangled life sim NPC that can 'grow and develop its own personality' with Nvidia's AI tech

PC Gamer·Jan 2025

https://www.pcgamer.com/games/life-sim/inzoi-is-creating-a-newfangled-life-sim-npc-that-can-grow-and-develop-its-own-personality-with-nvidias-ai-tech/

Cite this record

Trace Foundation. (2026). Krafton: Krafton integrated an on-device small language model into its life simulation game inZOI to power 'Smart Zoi' characters — AI-driven non-player characters that form their own thoughts, adjust their behavior based on experiences, and interact with players and each other in lifelike ways. The feature was included as an experimental option at inZOI's early access launch in March 2025 (data as of 2026-04-22) [Data set record]. AI Trace. https://www.aitrace.org/r/practice/af087ea9-265b-4ab4-b909-e5b59d912244. Accessed September 13, 2026.

Stable link: https://www.aitrace.org/r/practice/af087ea9-265b-4ab4-b909-e5b59d912244
Data as of: April 22, 2026
Last verified: August 4, 2026

How to cite AI Trace

Other practices by Krafton

Creative GenKrafton offers players in inZOI the ability to generate custom clothing textures from text prompts and convert 2D images into 3D in-game objects using on-device generative AI tools. These features have been available since inZOI's early access launch in March 2025.OtherKrafton tested an AI teammate called 'PUBG Ally' inside PUBG: Battlegrounds, which players can squad up with in Arcade Mode; the AI communicates by voice, adapts strategies in real time, fetches items, and assists with revives. Public playtesting in PUBG: Battlegrounds Arcade Mode began in early 2026.ModerationKrafton uses an AI system that automatically detects players using cheats in its games, as confirmed on the Krafton AI official use-cases page. The system is described as running within Krafton's live game operations.

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