ScatterLab, a generative AI startup, said on Jan. 13 that revenue in Japan from its AI fiction platform Zeta topped 1.1 billion won in December for the first time.

It recorded about 75 million won in daily revenue in early 2026. The company forecast its 2026 revenue in Japan would reach more than 20 billion won.

Zeta is an AI fiction platform where users create stories in real time with AI characters. It was introduced to the Japanese market in May 2024.

Zeta is also leading in user metrics in Japan. According to the mobile app market analysis service App Ape, Zeta ranked No. 1 in users among entertainment AI apps in Japan as of December 2025. It stayed No. 1 across monthly, weekly and daily metrics, and daily active users exceeded 200,000 as of Dec. 31, 2025, about 40 percent higher than the second-ranked app, the company said.

ScatterLab CEO Kim Jong-yoon said Zeta is a platform that concentrates the company's AI technology and product planning capabilities, and that it is proving a steep growth pace in Japan through actual revenue and user metrics that surpass its service in South Korea. He said the company will expand into global markets and grow into a global 100 million-user AI fiction platform.