Krafton's Kiff and Ludi 0.2: Why a Game Studio Launched a K-pop AI Chat App and a Robot Brain on the Same Day
Krafton, the studio behind PUBG, released the K-pop AI character chat app Kiff and unveiled its robot AI Ludi 0.2 on November 2, 2026. Here is how the two connect, what the Korean character-chat market looks like in numbers, and what fans, developers and investors should watch.
On November 2, 2026, Krafton, the South Korean studio best known for PUBG: Battlegrounds, put out two announcements at once. One was Kiff, a mobile app where K-pop fans chat with an AI character designed by the artists themselves. The other was Ludi 0.2, an AI system for robots that reads what people say and gesture, and cooperates with them. They look like unrelated businesses. The company ties them together with a single phrase: "interactive AI that understands human intent and context." It was a one-day summary of how a game company is trying to become an AI company, so let me walk through it properly.
What happened
Kiff is a K-pop AI character chat service that Krafton builds and operates itself. Korean service started on November 2.
- The first partner is the girl group FIFTY FIFTY (agency: Attrakt). The members took part in designing the personality and look of the official character, named Weni.
- There are two ways to talk. Chat mode is text-first. Character mode shows the character on screen, waving back when you say hello and reacting as you talk.
- The character remembers your preferences and past conversations, sometimes starts the conversation itself, and passes on news about the artist. It can also turn a day's chat into an illustrated diary.
- Age 14 and up, iOS and Android, Korean language only for now. Some daily chat is free. A subscription of 3,900 won a month (roughly 2.7 US dollars) removes the limit. Outlets describe the free allowance differently, so check the app itself.
Ludi 0.2 comes from Ludo Robotics, Krafton's robotics research subsidiary. It was presented on October 30 (local time) at the 2026 Bay Area Robotics Symposium (BARS) at UC Berkeley by Lee Kang-wook, Krafton's Chief AI Officer and Ludo's CTO.
- It follows Ludi 0.1, shown in August 2026. Version 0.1 paired a vision-language model (a model that understands camera images and text together) with navigation and object manipulation. It could follow voice commands, ask a clarifying question when an instruction was vague, and switch tasks if you changed your mind mid-way, like swapping the drink it was fetching.
- Version 0.2 upgrades five areas, according to the company: social intelligence (responding to intent, feedback and social cues), memory and reasoning that keep context as the situation changes, tighter linking of moving, handling and interacting, gesture understanding, and smoother physical motion in a set environment.
- The same day, Ludo Robotics formally opened its headquarters research lab in Palo Alto, California, to work alongside the Seoul office.
Kim Chang-han, Krafton's CEO who also serves as CEO of Ludo Robotics, said the company has spent nearly 20 years building real-time interactive virtual worlds through games, and will use that experience to build AI that lets robots cooperate with people in the real world.
Background: where this comes from
On October 23, 2025, Krafton declared itself an "AI First" company at an internal town hall called Krafton Live Talk. The four pillars were agentic AI, automating AI workflows, AI research, and stronger in-game AI services. Before that came the Co-Playable Character (CPC) technology built with NVIDIA, and PUBG Ally, an AI teammate that fights alongside you in Battlegrounds. The original research question was how to make a game NPC respond like a person.
In March 2026, Korean media reported that Kim took on the CEO role at Ludo Robotics. Ludi 0.1 followed in August and 0.2 at the end of October. Kiff shares the same root. Park Jae-min, head of Krafton's AI Frontier division, said the company has long researched AI that lets in-game characters communicate naturally with players. So the sequence is: a character inside a game, then a character inside your phone (Kiff), then a character with a body (Ludi). The research subject, "a being that interacts with humans," stays the same. Only where it lives changes.
How Krafton's interactive AI expanded (per company announcements)
- In-game charactersCPC and PUBG Ally: teammates that react like people
- AI First declarationOct 23, 2025, internal Live Talk
- Ludi 0.1Aug 2026: VLM plus navigation and manipulation
- Ludi 0.2 and KiffOct 30, 2026 at BARS; Nov 2, 2026 Korean launch
- Ludi 1.0 (in development)Perception, dialogue and action in one model
Looking closer
Why a K-pop character chat app
In Korea, AI character chat is already the category that captures the most time among AI apps. Data from the analytics firm WiseApp Retail Goods for February 2026 shows Zeta, a character-chat app by the startup Scatter Lab, ahead of ChatGPT in total monthly usage time by more than two to one, even though ChatGPT has far more users.
The thing to notice is the gap between "AI you ask questions" and "AI you have a relationship with." Character chat keeps people around. Krafton adds two things on top. First, official IP: the character is made by the artists, not by fans. Second, a game studio's character tech: not just text, but a character on screen that answers with body language.
What Ludi is aiming for: social intelligence
Many robot-AI companies compete on dexterity, meaning how well the robot grabs and moves things. Ludo Robotics puts social intelligence up front instead: noticing a gesture, following a change of mind, asking when unsure. That is a natural bet for a game company. Making an NPC read a player's intent is what it has done for two decades. But this announcement is closer to a demo and a statement of direction. There are no performance figures, no mention of which robot hardware it runs on, and no commercialization date.
The money
No investment figure was given. Two reference points exist. At its Q3 2025 earnings, Krafton said it was building a GPU cluster of roughly 100 billion won (about 70 million dollars) on NVIDIA B300 chips, targeting operation in the first half of 2026, and it is part of an SK Telecom consortium developing a Korean foundation model. Analyst consensus for Q3 2026, as reported by CEO Score Daily on October 30, is revenue of 1.1268 trillion won (up 29.4% year on year) and operating profit of 280 billion won (down 19.7%). Revenue grows, profit shrinks on new-game and marketing costs, and AI spending sits inside those costs. Actual results have not been released yet.
Other views and limits
The shadow side of character chat. The category's growth comes with user-protection problems. Scatter Lab disclosed that Zeta had 1.48 million monthly active users at the end of September 2026, of whom 380,000 were 19 or younger. It plans to introduce a default three-hour daily limit and a 100,000 won monthly spending cap for teens by year end, after reviews found that inappropriate content could be generated even in safe mode through workarounds. The same is true abroad. On October 29, 2025, Character.AI announced it would end open-ended chat for users under 18 by November 25. Kiff requires users to be 14 or older and limits itself to official artist-made characters, which narrows the scope. But the path from fandom to over-attachment is the same. What safeguards Krafton has built was not part of this announcement.
How fans react. Turning idols into AI has been tried before, and some attempts drew fan backlash. Kiff is different in that Weni is a separate character the members created, not a clone of the members. Whether fans embrace that is an open question, and one partner group signals this is still an experiment.
Robot hype risk. Social intelligence is the most impressive thing in a demo and the hardest thing to measure. With no comparative numbers between 0.1 and 0.2, the accurate reading today is "this is the direction the company is going," not more.
What it means for you
- K-pop fans and curious users: Try the free tier first. A character that remembers you means your conversations are stored on a server, so read the privacy policy once. If a teenager in your house uses it, set a time budget together.
- Developers and indie app makers: Memory, proactive messages and the illustrated diary are retention design, not decoration. There is a lesson in what "being remembered" is worth even in a small app. The flip side is that age, time and spending safeguards have to be in the design from day one. This market is paying that tuition first.
- Investors: Nothing here changes revenue soon. Watch whether the Q3 earnings call in early November mentions AI costs or any Kiff metrics, and how quickly new artists join.
- The entertainment industry: If "official artist-made AI character" becomes a format, it becomes a line item in IP contracts. Revenue split and character ownership are the next questions.
What to watch
- Krafton's Q3 2026 earnings, expected in early November (exact date not confirmed): any mention of AI spending or Kiff
- Kiff's second partner artist and overseas launch timing (the company says only "gradually")
- Ludi 1.0, the foundation model combining perception, dialogue and physical action: no date announced
- Korea's rules for AI character chat: industry self-regulation guidelines and the broader policy discussion
Closing
What stayed with me was not that a game company is doing robots. It was the one-line thread: a character in a game, a character in your phone, a character with a body. When you build apps alone, you tend to look at each feature on its own. A large company instead decides on the one thing it does well and pours it into different containers. It made me think I should write down, in one line, what I actually do well.
Have you ever talked with an AI character? Did being remembered feel nice, or a little much? I would love to hear.
Sources
- Krafton press release, Krafton unveils robot AI Ludi 0.2 with social intelligence (Korean)
- Gamemeca (English), KRAFTON Robotics Unveils Social Intelligence AI 'Ludy 0.2'
- ZDNet Korea, Krafton launches K-pop AI character chat Kiff in Korea (Korean)
- ZDNet Korea, Ludo Robotics unveils Ludi 0.2 (Korean)
- EBN via Investing.com, Krafton steps up AI business: Kiff launch and Ludi 0.2 (Korean)
- GameVu, Krafton goes all-in on interactive AI, from virtual characters to robots (Korean)
- Asia Economy (English), Krafton declares AI First
- Financial News, WiseApp AI chatbot app usage, February 2026 (Korean)
- Kyunghyang Shinmun, Scatter Lab's teen limits for Zeta (Korean)
- CEO Score Daily, Krafton and Nexon: revenue growth, profit decline expected for Q3 (Korean)
- Krafton, Q3 2025 earnings release (Korean PDF)
- Bloomberg, Character.AI to Ban Children Under 18 From Talking to Its Chatbots
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