miHoYo
- Chinese name
- 米哈游
- Pinyin
- Registered name
- 上海米哈游网络科技股份有限公司
- Unified Social Credit Code
91310000590397350Dregistered in Shanghai 上海- Website
- 6415164493
miHoYo (米哈游, 上海米哈游网络科技股份有限公司) is a Shanghai game developer founded in 2012 by Cai Haoyu (蔡浩宇), Liu Wei (刘伟) and Luo Yuhao (罗宇皓), known for Genshin Impact (原神) and the Honkai (崩坏) series. Outside Greater China it has published under the HoYoverse brand since 2022.
Its digital-human work began in 2018, when it set up an internal AI research unit, Inverse Entropy (逆熵), later upgraded to the Inverse Entropy Technology Research Institute (逆熵科技研究院), to apply deep learning to content production.
The unit’s best-known creation is the virtual character yoyo Lumi (yoyo鹿鸣). She first appeared under the code name N0va in a test video released on 15 May 2020, and on 5 June 2020 she was named and given her own Bilibili account. She is the on-screen host of miHoYo’s live-wallpaper app Artificial Desktop (人工桌面), and her voice is generated with Inverse Entropy’s AI. For two years she appeared only in short videos. Her first live stream, on Bilibili on 15 July 2022, drew 660,000 viewers in its first half hour, according to Shanghai Securities News (上海证券报). In September 2022 the same AI moved into miHoYo’s games, starting with Tears of Themis (未定事件簿).
In January 2024 NVIDIA named miHoYo among the developers working with its ACE digital-character tools, such as Audio2Face and Riva. In June 2024 miHoYo set up a wholly owned subsidiary, Shanghai miHoYo Mifa Technology (上海米哈游秘法科技有限公司), and in September 2024 its large model Glossa completed China’s generative-AI service filing under that company, for use across game production.
Cai Haoyu stepped down as chairman in September 2023, with Liu Wei taking over, and founded a separate AI company, Anuttacon. Its game Whispers from the Star (星之低语), released on Steam on 15 August 2025, has no dialogue tree: the player talks freely with an AI-driven character, Stella, who has crash-landed on an alien planet. In April 2026 Anuttacon published LPM 1.0 (Large Performance Model), a 17-billion-parameter model that generates a character’s facial expressions and movements in real time from text, audio and images.
In July 2025 miHoYo set up a new AI subsidiary with registered capital of 500 million yuan. In November 2025 it showed a 31-minute gameplay demo of Varsapura, its next flagship open-world game, built on Unreal Engine 5 with rendering carried over from the Lumi project and presented with AI features in its city characters; 36Kr and Shanghai Securities News reported that Cai Haoyu leads it. In September 2026 Liu Wei said miHoYo aims to join the top tier of Chinese large-model developers within two to three years. miHoYo was also an early, angel-round investor in MiniMax, which listed in Hong Kong in January 2026.